… It apparently exists as “Pokemon + Nobunaga no Yabou”.
According to the guys at serebii.net, a Pokemon crossover is made with the turn-based strategy Nobunaga’s Ambition. Little is known about the details of the game, however, yet from all me and my friend gathered is that it’s a turn-based tactical strategy game set in the fictional region called “Ranse”, the main protagonist uses an Eevee, the character designs are obviously from Samurai Warriors 3 (possibly for more recognition on the fact that this is a Koei game), and you use tactical Pokemon battles to dominate Japan. Also it will be released on the Nintendo DS.
All these and more when… we can get our hands on a Western Localization (with this game’s possibility being high considering that it’s a Pokemon Game, yet I’m more worried with that than ever since Koei’s games aren’t really friendly recently with localization attempts). So let’s hope for the best… and I’ll go learn some Japanese if all else fails!