In tomorrow's WAPO, the last paragraph of the article about the documents, this tantalizing info:
"in a related development, White House press secretary Scott McClellan hinted that more documents regarding Bush's National Guard service may soon be released. Asked whether officials in the White House have seen unreleased documents, McClellan called that "a very real possibility." Other officials with knowledge of the situation said more documents had indeed been uncovered and would be released in the coming days."