Darkrai is pretty cool with Roar of Time and Spacial Rend, if anyone went to that event. They could have done away with Cressila, took me a LONG time to catch that sucker since I used a Master Ball on Mespirit.
Arceus is one god of a Pokemon, could they surpass in Generation 5? We know they won't stop.
Oh yeah, and Heatran, he, well, I don't really see the reason to need him. And Giratina had no story either, until now. What are they going to do about that weird place Giratina lives in. Maybe that was going to be some sort of Torn World in D/P, but they realized now they could do that.
And I'm thinking of the compatibilty with D/P and PBR, to D/P it might only be battling ane training, no battle tower, no poffin, online maybe so, except the 20 person thing. That won't work, and Wi-Fi underground. Oh well.