As I have Black, I am probably gonna get Black 2 as it would be more logical. Here are my two cents:
- I am kind of disappointed in the new forms, but for a different reason. They look cool and everything, but the story in Black/White told of the "original" dragon Pokemon that split into Reshiram and Zekrom. This must mean that this Pokemon had some characteristics of Reshiram and Zekrom (and Kyurem) but from these new forms it seems that Reshiram and Zekrom were never a single being. That contradictory fact disappointed me, but I'm still getting this game.
- If I had to guess on the new forms' typing will be, it will be Ice/Dragon. As for its ability, I would suspect it would be Turboblaze and Teravolt (depending on the form), except they will be upgraded to somehow provide more power to Fire and Electric-type moves or even Ice Burn and Freeze Shock respectively?
- More useful TM's. Not to add new ones, but make it so that some of the TM's teach different moves. As TM's can no longer be traded, versions don't necessarily need to have all the TM's teach the same moves, so I guess changing them is feasible (please bring Roost back).
- Gym leader rebattles. I would love for Clay to pull off a Hippowdon + Excadrill combo and being able to face all three guys from the first gym (each using starters or something).