I hope I'm not the only one who saw this post and started immediately thinking about Pokémon crossovers with some of their other favourite games...
Since it's a collaboration, though, it could be any of GF's properties combined with, well, any other game. So many options, only time will tell.
That said, I'm still going to be sitting over here in my corner with my fingers crossed hoping against hope for a Pokémon Phoenix Wright crossover, or something else awesomely ridiculous. >_>