From http://nintendoenthu...e-to-the-wii-u/
The idea to develop a new Metroid Prime title came along with the New 3DS, with controls suited to the title. Ideally, the plan was for the game to arrive alongside the hardware but, well, it’s a little late! If I’m honest, we did look into a Wii U version. However, we had to consider the resources it would take, what teams to devote for a Wii U game.