Well, this is my attempt at something different.
For 2001 redistricting, Democrats controlled the governorship and state House. The result was a ridiculously gerrymandered incumbent protection map. In 2008, this map helped Democrats gain a slim 52-48 advantage; however, the 2010 Republican wave swept over the state and Republicans gained the trifecta in the state. The new map is actually much more compact than before, but the results are perhaps the worst outside of North Carolina. Neither house of the Indiana legislature is likely to go Dem in the next decade. Here's my analysis of the state House districts.
First, a statewide shot.
Northwestern Indiana
Lake County used to contain all or part of 10 districts. That number is now down to 8. The 12th gets pushed further south and goes from Safe D to Lean D. The 11th is pushed to southern Lake and Porter Counties and goes from Safe D to Likely R. The 15th becomes more compact around Schererville and goes from Likely R to Tossup. The 13th is moved out of the area.
Porter County used to have all or parts of 6 districts. That number is down to 5. The 4th becomes more compact around Valaparaiso and goes from Lean R to Tossup.
LD-01 (Hammond): Old 66/33 New 71/28 Safe D
LD-02 (East Chicago): Old 79/21 New 91/9 Safe D
LD-03 (Gary): Old 78/22 New 85/15 Safe D
LD-11 (Lowell): Old 61/38 New 44/55 Likely R, D seat flips to R
LD-12 (Munster): Old 63/36 New 56/43 Lean D, D seat becomes competitive
LD-14 (Merrillville): Old 88/12 New 80/19, Safe D
LD-15 (Schererville): Old 43/56 New 49/50, Tossup, R seat becomes competitive
LD-19 (Crown Point): Old 51/47 New 49/50, Tossup, D seat becomes competitive
LD-04 (Valparaiso): Old 48/51 New 51/49, Tossup, R seat becomes competitive
LD-10 (Portage): Old 58/41 New 59/40, Safe D
Northern Indiana
This part of the state was previously severely gerrymandered in favor of Democrats. Republicans turn that around and make 5, 7, and 17 more competitive in their favor.
LD-09 (Michigan City): Old 66/33 New 64/34, Safe D
LD-20 (La Porte): Old 51/47 New 54/44, Lean D, R seat flips to D
LD-05 (South Bend): Old 56/43 New 49/50, Tossup, D seat becomes competitive
LD-06 (South Bend): Old 67/32 New 70/29, Safe D
LD-07 (Mishawaka): Old 65/34 New 53/46, Lean D, D seat becomes competitive
LD-08 (South Bend): Old 57/42 New 66/33, Safe D
LD-17 (Plymouth): Old 48/50 New 42/57, Likely R, D seat flips to R
Northeastern Indiana
Some of the district numbers get swapped around here, but the number of districts stays the same. Districts become un-gerrymandered. Dem cracking of Fort Wayne is undone, and could result in the loss of a seat.
LD-21 (Elkhart): Old 46/53 New 46/53, Likely R
LD-22 (Warsaw): Old 36/63 New 31/68, Safe R
LD-48 (Elkhart): Old 48/51 New 49/50, Lean R
LD-49 (Goshen): Old 41/58 New 40/59, Safe R
LD-51 (Angola): Old 43/56 New 43/56, Safe R
LD-52 (Auburn): Old 43/56 New 39/60, Safe R
LD-82 (Kendallville): Old 38/61 New 39/60, Safe R
LD-83 (Columbia City): Old 41/58 New 39/60, Safe R
LD-80 (Fort Wayne): Old 74/25 New 82/18, Safe D
LD-81 (Fort Wayne): Old 66/34 New 51/48, Tossup, D seat becomes competitive
LD-84 (Fort Wayne): Old 44/56 New 41/59, Safe R
LD-85 (Fort Wayne): Old 34/65 New 38/61, Safe R
Eastern Indiana
LD-79 (Decatur): Old 37/61 New 36/63, Safe R
LD-50 (Huntington): Old 37/62 New 40/59, Safe R
LD-18 (Wabash): Old 29/70 New 35/64, Safe R
LD-23 (Logansport): Old 35/64 New 43/56, Safe R
LD-30* (Kokomo): Old 51/48 New 49/50, Lean R
LD-31* (Marion): Old 49/50 New 46/53, Likely R
LD-32 (Tipton): Old 36/63 New 38/61, Safe R
LD-33 (Portland): Old 48/50 New 46/53, Likely R
LD-34 (Muncie): Old 65/34 New 67/32, Safe D
LD-35 (Anderson): Old 47/52 New 48/50, Tossup
LD-36 (Anderson): Old 53/45 New 58.41, Safe D
Western Indiana
The 13th (from Lake County) and 25th (from Indianapolis) are essentially two new districts here, although the 25th is similar to the 24th, which was moved to Hamilton County. The 41st and 42nd get pushed to the south.
LD-16 (Rensselaer): Old 40/58 New 42/56, Safe R
LD-13 (Williamsport): Old 62/38 New 43/55, Safe R, D seat flips to R
LD-25 (West Lafayette): Old 73/26 New 46/53, Likely R, D seat flips to R
LD-26 (West Lafayette): Old 56/43 New 59/40, Likely D, R seat flips to D
LD-27 (West Lafayette): Old 61/38 New 58/42, Safe D
LD-38 (Frankfort): Old 39/60 New 41/58, Safe R
Indianapolis
The 25th moves from Indianapolis to the northwest. The 24th moves from the Logansport area to Hamilton County. Elsewhere, LD-37 flips Republican while Republican-held LD-87 appears to be within reach for Democrats.
LD-24 (Zionsville): Old 45/54 New 37/62, Safe R
LD-29 (Noblesville): Old 39/60 New 38/62, Safe R
LD-37 (Fishers): Old 54/45 New 40/59, Safe R, D seat flips to R
LD-39 (Carmel): Old 37/62 New 39/60, Safe R
LD-53 (Greenfield): Old 35/64 New 37/62, Safe R
LD-28 (Danville): Old 35/64 New 34/65, Safe R
LD-40 (Brownsburg): Old 40/59 New 41/58, Safe R
LD-86 (Indianapolis): Old 62/37 New 64/35, Safe D
LD-87 (Indianapolis): Old 45/54 New 52/48, Tossup, R seat becomes competitive
LD-88 (Indianapolis): Old 47/52 New 42/57, Safe R
LD-89* (Indianapolis): Old 53/46 New 52/47, Tossup
LD-90 (Indianapolis): Old 43/56 New 41/58, Safe R
LD-91 (Indianapolis): Old 43/56 New 44/54, Safe R
LD-92 (Indianapolis): Old 54/45 New 53/46, Lean R
LD-93 (Indianapolis): Old 39/60 New 40/59, Safe R
LD-94 (Indianapolis): Old 82/17 New 82/18, Safe D
LD-95 (Indianapolis): Old 79/20 New 79/20, Safe D
LD-96 (Indianapolis): Old 77/22 New 87/13, Safe D
LD-97 (Indianapolis): Old 64/35 New 57/41, Likely D
LD-98 (Indianapolis): Old 83/16 New 84/15, Safe D
LD-99 (Indianapolis): Old 80/20 New 83/16, Safe D
LD-100 (Indianapolis): Old 70/28 New 66/33, Safe D
LD-58 (Greenwood): Old 39/60 New 38/61, Safe R
West of Indianapolis
Two major changes for this part of the map. Terre Haute Democrats are packed tighter into LD-43, helping to make LD-44 and LD-46 more Republican. Both of these seats were won by Democrats in 2008 but went Republican in 2010. The other change is that deep red Morgan County is used to offset the bright blue areas around Bloomington. This will cause LD-60 to flip from D to R in 2012.
LD-41 (Lebanon): Old 44/55 New 39/60, Safe R
LD-42 (Clinton): Old 48/50 New 49/49, Lean D
LD-43 (Terre Haute): Old 59/40 New 62/36, Safe D
LD-44* (Greencastle): Old 44/54 New 41/57, Likely R
LD-46* (Terre Haute/Bloomington): Old 49/50 New 47/52, Lean R
LD-47 (Franklin): Old 35/64 New 36/63, Safe R
LD-60 (Mooresville): Old 59/41 New 45/54, Lean R, D seat flips to R
LD-61 (Bloomington): Old 75/24 New 76/25, Safe D
East of Indianapolis
There’s only one change to discuss here. LD-56 was a Democratic gerrymandered district from New Castle to Richmond. It loses the New Castle part and lies completely within Wayne County and should flip R in the next election.
LD-54 (New Castle): Old 42/56 New 46/52, Lean R
LD-55 (Connersville): Old 35/63 New 40/58, Safe R
LD-56 (Richmond): Old 55/43 New 48/51, Lean R, D seat flips to R
LD-57 (Shelbyville): Old 41/57 New 39/59, Safe R
LD-59 (Columbus): Old 43/56 New 45/54, Likely R
LD-65 (Bedford): Old 41/58 New 42/57, Safe R
LD-68* (Lawrenceburg): Old 37/61 New 32/67, Safe R
Southeastern Indiana
This part of the state is like the Kentucky area that it borders in that there are more ancestral Democrats here than in the northern part of the state. The seats here are pretty competitive and can switch from election to election.
LD-66 (Charlestown): Old 43/55 New 45/53, Lean D
LD-67 (rural): Old 37/61 New 38/60, Safe R
LD-69 (Seymour): Old 46/53 New 43/55, Tossup, D seat becomes competitive
LD-70* (Corydon): Old 40/59 New 40/59, Likely R
LD-71 (Jeffersonville): Old 50/49 New 52/47, Likely D
LD-72 (New Albany): Old 46/53 New 46/54, Safe R
LD-73* (Salem): Old 45/53 New 41/58, Safe R
Southwestern Indiana
Like the southeastern part of the state, lots of ancestral Dem territory here and lots of swing districts.
LD-45 (Vincennes): Old 44/55 New 47/52, Lean R, R seat becomes competitive
LD-62* (Bloomington): Old 42/56 New 47/52, Lean R, R seat becomes competitive
LD-63 (Jasper): Old 41/58 New 40/58, Safe R
LD-64 (Princeton): Old 45/54 New 42/57, Tossup, D seat become competitive
LD-74* (Tell City): Old 52/47 New 52/46, Tossup
LD-75* (Boonville): Old 49/50 New 45/54, Likely R
LD-76* (Mount Vernon): Old 48/51 New 47/52, Lean R
LD-77 (Evansville): Old 60/39 New 66/33, Safe D
LD-78 (Evansville): Old 40/60 New 43/56, Likely R
*Seat won by Democrat in 2008 and Republican in 2010
Breakdown:
Safe Dem 22
Likely Dem 3
Lean Dem 5
Tossup 11
Lean Rep 10
Likely Rep 11
Safe Rep 38
By my estimation, these are the seats that will be open or have two incumbents running against each other:
LD-07 David Niezgodski (D-South Bend), Timothy Wasco (R-Mishawaka)
LD-11 Open
LD-12 Dan Stevenson (D-Highland), Mara Candelaria Reardon (D-Munster)
LD-13 Open
LD-14 Chet Dobis (D-Merrillville), Vernon Smith (D-Gary)
LD-15 Open
LD-17 Open
LD-20 Thomas Dermody (R-LaPorte), Nancy Dembowski (D-Knox)
LD-21 Open
LD-23 William Friend (R-Macy), Richard McClain (R-Logansport)
LD-24 Open
LD-37 Open
LD-47 Open
LD-50 Dan Leonard (R-Huntington), Jeff Espich (R-Uniondale)
LD-53 Scott Reske (D-Pendleton), Bob Cherry (R-Greenfield)
LD-57 Sean Eberhart (R-Shelbyville), Woody Burton (R-Shelbyville)
LD-58 Open
LD-60 Peggy Welch (D-Bloomington), Ralph Foley (R-Martinsville)
LD-66 Open
LD-67 Open
LD-68 Thomas Knollman (R-Liberty), Judson McMillin (R-Brookville)
LD-69 Terry Goodin (D-Crothersville), Dave Cheatham (D-North Vernon)
LD-83 Open
LD-97 Jeb Bardon (D-Indianapolis), Mary Ann Sullivan (D-Indianapolis)