The Poliwhirl Family (+ Crogunk) might indicate that Team Galatic might be using these pokemon. I'd take a Poliwag over Wrumple any day. Crogunk would be annoying. It looks like the Poli fammily is using Belly Drumb, all though it could be something other than that. It looks like they are engaged in battle. I wonder who it is against?
The blue looking 3D thing may be Giratina's Lost Zone. Perhaps that will be integrated into the game. It looks as if it throws all pokemon RPG game princeples out the window.
The charectors look like they are all dressed for Winter. Dawn has a scarf, boots, fuzzy hat, and long socks on. All though she is wearing a skirt, the socks come up pretty high, not to mention that the skirt seems like it is insolated. Lucas has on some cozy looking pants, and has a jacket on. Rival, well, he looks like he lost weight. As if he needs to be skinier -___-
The castle thing may be the new Battle thing (ie, BF in Emerald). Then again, it could be a very elaborate gym.
Perhaps Giratina will be in Origin form in Platinum, and be normal form in DP.
As for Deoxys, I think it will be awesome. I never got an Eon ticked. Plus, if I did, I'd need to spend hours tossing Ultra Balls at it. Perhaps they gave it NeverMeltIce because it is in Space, and it found a hunk of frozen space debree?