I´ve played the game, and I am currently playing it on the Xbox360, it´s a really good one, one of my favorite games on this moment.
The story is awesome, playing with one of the four horseman to kill the one who destroyed the balance
Spoiler for those who didn´t finished the game
but when you finished the game you should know that after the destruction of the seventh seal the other 3 horseman will appear in the sequal, my theory to help war or try to punish him in name of the counsil, or first fighting war and when they know it´s not his fault join him to destroy the counsil or something like that
But Aqua was uncounsious when Ven was fighting Vanitas right?
so how could she have seen Vanitas his face when her status was uncounsious, so I think it will just be a meeting, Sora freaking out because ansem is still alive, get her in his team and go further with their adventure.
''we already got 2 who are going to search for the potion itself, we got one who stays in this libary, and i'll go check my people for information and for entry to some ancient libarys to search for the recipe or whatever, so really if you want to come with me, then i should be quick and follow me'' said rexejon
''orry if i'm a little bit rude or something, but that is what you get when someone doesn't trust me'' added rexejon