I got some different results when I allocated the votes for the 2030 estimates. I think I used the same method as the census, according to wikipedia:
http://en.wikipedia.org/wiki/United_States_Congressional_ApportionmentWith this method, these are the changes:
CA: 55
TX: 40
FL: 36
NY: 24
NC: 16
KY: 8
CT: 7
ID: 5
NE: 5
MT: 4
DE: 4
The changes are slight, but the whole idea remains the same, the movement is from the Northeast, Great Lakes, and parts of the South.
With the way things are going, Nevada should be turning Democratic within time as it has been, and Arizona, Texas, and the Atlantic Southeast will become more competitive. If the Democratic party keeps a hold of their current states in the Northeast and Midwest, while taking advantage of new found liberals in other regions, the changes could be great.