4Gamer have put up several pictures of the Pokémon + Nobunaga’s ambition booth at Jump Festa. If you’re just getting caught up, yes, that game is indeed a crossover between the two franchises.
4Gamer report the game is being developed jointly with Tecmo Koei games and The Pokémon Company. Here’s a closer look at the booth and some screenshots:
Here are screenshots. Or rather, photos of screenshots:
The game is slated for release in spring 2012. You can find more photos at the 4Gamer link above.