Mario Odyssey is selling much better than a normal 3D Mario because it is based on Mario 64 and any of the Wii games. If anyone bothered to do any research on 5th generation then one would know that Mario 64 was uber big. Bigger then the Wii games or 3DS games. So making a direct sequel to Mario 64 was the best idea for Nintendo.
Not knocking on the Wii games but they weren't really like the N64 games as they were much more linear. Sales potential depends on what Nintendo does with the franchise. That's why I keep saying a proper 2D Mario with ambition will sell so much that it will pass peak Pokemon. 2D Mario on the NES was such a phenomenon that it blows every game franchise today.








