@Craig:
@Rakeman:
Depends on reviews… A&A Revised is long enough for my taste, adding a new nation and larger map may slow it down, if that is the case I will probably just play Revised with any Anniversary Edition rules that can be applied 
I have never understood the “it takes too long to play” argument.
You either allot enough time to play, you continue the game in the next session, or the game just ends at the end of the current session.
There is just no way this kind of game is going to consistently end in two-three hours.
Craig
Allot enough time to play: This is what I go for. Usually a good 6 hours, not including setup.
Next session is what I go for when the games last especially long, but there are problems with this (namely, the board takes up a lot of space)
Game ends early? No way! 
Obviously no game like this will end in a couple hours (that’s what I own Risk 2210 for!) but some people simply don’t want to spend 14 hours on a board game. For me, a 6 hour session or two 4 hour sessions is about the max I would spend on a single game… not including setup of course.