All of the Z2's cast returns, I believe. Full Metal Panic, Gunbuster, Aquarion Evol, and Rebuild of Evangelion are new to the Z series. I probably missed a few others too.
In Gundam-related news, Char's Counterattack is in (which is odd, since the Z series Quattro isn't into the same ideals as CCA's Char), 00 movie is in, and last but not least, Unicorn. How far Unicorn will go = unknown.
The game will be split into 2 parts, ala Z2.
April 10th release date for PS3 and PS Vita.
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