After Wii U no more.... wait to buy the system until after they release their Mario game.
If its not a 3D mario.... no buy.
Nintendo just need to launch the consol with a Mario and zelda from basically day 1.
Thats all it takes, every new console from now on, should launch with mario & zelda day 1.
Then they would get the hype + launch sales numbers that ll attract more game development => more buys ect.
Time for the next Luigis Mansion / Mario Sunshine / Mario 64 / Mario Galaxy's.