I think Prime (3D) was a good addition to the Metroid franchise but I can't consider Prime as a replacement for the whole original side-scrolling concept of Metroid. I can't imagine a side-scrolling metroid and 3D metroid competing in the same consumer base, they would be so different. So why are you talking about 3D metroid here in the first place? Do you feel there is no space in the game industry for a few grade-A platformers? You say there is enough variety in the Wii game lineup? 3D should be a genre among others, not the only one. Can you honestly say that platformers work better in FPS environment? The FPS genre is like fighting genre used to be right after Street Fighter II and I expect it to die off soon.