Naming it the super nintendo wii or wii 2. The controller should be like the joycons but with a proper dpad, analogues like the nunchck and infra red. Use the money saved on controllers over the wii u game pad to increase the system's specs (better gpu, cpu and 4-6gb of ram) for the same $350 price tag. Regarding software development, they should have prepared for making games in HD a lot sooner AND made sure to have a several huge games for the first year.
In a scenario where The wii u released with mario 3d world, followed by MK8 in spring 2013, GTAV in september and smash in november 2013, things would have gone a lot different last generation. About GTAV, this one had no excuse to skip the original wii u. It's on the list to illustrate how much of a difference it would have made, not because it required better specs or action from nintendo.
