So far we've seen roughly 4 of 5 different variations. The cave, the open plains with trees in the background, the rocky area, and a stadium looking place with people silhouetted in the background. Did I miss any?
Anyway I know this seems like a small thing but with the game finally being 3D and moving away from having no background it would be a massively wasted opportunity if we didn't get some awesome battle backgrounds.
3DS Friend Code: 0619-3902-4035 Pokemon White Friend Code:0433-9592-2992
I honestly think that's what excites me most about these games. Just imagine a battle background of a forest temple where Xerneas peers out at you and a battle initiates, or the cliff of a mountain where Yveltal flies overhead. And the gym leader battles should be much more interesting this time around, especially if you consider how awesome Iris' background was in BW2