Looks like that Pokémon project for the Wii won’t be an all-out Pokémon RPG similar to the handheld titles. In a recent interview with IGN, Game Freak co-founder Junichi Masuda said that he believes the core series will remain a handheld proposition for now.
“I think the Pokémon core series is always going to be with handheld hardware, in the future as well," he said. "I consider handheld hardware you can carry around with you as almost being equal to being with Pokémon, always."
Masuda went on to explain that the handheld “matches the idea of Pokemon” that Game Freak has, since users can talk to each other and transfer data whenever they’ve got a portable handy. And even if consoles were to be more connected with the world, Masuda doesn’t think the series would fare well on a device that can’t leave the TV stand. It’s just not what Pokémon is about to him.
As IGN notes, Masuda’s thoughts shouldn’t be seen as a cut and dried confirmation that we won’t see a core Pokémon on the Wii, but the dude is the co-founder of the studio that puts out the core titles, so he does, definitely, have an inside track on this.