Yeah, I preordered this game and it looks pretty cool.
Apparently from what I heard (mostly serebii, lol), it's a pokemon crossover of the "nobunaga's ambition" series of games. basicaaly, you're this warlord dude that's trying to conquer this new region of "Ransei" using pokemon.
It kind of reminds me of the "Fire Emblem" series of games, based on the battle system.