So with Nintendo saying there moving away i think the wii u needs a update like

1.New pro controller with headset/phone jack and analog triggers and button layout like the gamecube controller or ps4

2. wii u with a bigger hardrive 500gb

3.get rid of unnececary things bundled in the wii u and and a pro controller and making every game have an option to play with either the gamepad or pro controller 

4. have first party games online and online chat with everyone what i mean byn that is that in mk8 there's no chat in public lobbies which is truly strange for game made in 2014

5.get back the big third party games ex: assasin's creed, Call of duty, ea/2k sports game 

6. advertise the damn thing more for hardcore instead of family friendly nintendo in my opinion that really hurts nintendo's image if they want to cater to the hardcore

7. support the console after the succesor is announced and released