Board Thread:Speculation, Theories, and Rumors./@comment-2054358-20131115204828/@comment-2054358-20140123180423

Yeah, he would be Wii U exclusive, that's obvious. Like how Banjo-Kazooiee was Xbox 360 exclusive in the first Sonic & Sega All-Stars Racing. In fact, they've considered Mario for the Wii version of the first game, but Sega didn't want to cross-contaminate with the Mario & Sonic series despite already doing so in Super Smash Bros. Brawl and Sonic confirmed for Super Smash Bros. for Wii U / 3DS three years later.