Well, considering how we've seen Auron in trailers and videos and such, he doesn't move that slow, even when stopping Hades and Cerberus with his sword.
And personally, I would like to see Rinoa, Quistis, Lulu, Vincent, Tifa, Nanaki, and maybe Shuyin--though I doubt it--in KH2. I guess Dagger wouldn't be that bad, either... I also hope Aerith returns and Cid's character is done justice. At least one swear word, c'mon. Axel did it! And they noticed, it was stated in CoM's rating system.