If they call it Super Nintendo 2 it will kill the hate against them

Make an amiibo for everything, because monies

They'll say they learned "a lot", but in Nintendo's terms "a lot" means, "let's name the next console Wii From Us 2 U!"

How about Super Wii?

Hopefully they learned that they can't sell a console to the masses using their first party games. That alone just isn't enough to convince people to buy their consoles.

-Marketing is key. You can't sell something no one knows about.
-The Wii's market is gone, and it's not coming back.
-Launch lineup needs to impress.
-Rushing your product a year before the competition isn't smart.

It hurts to say it but none.

The cost of your controller can't exceed a quarter of the cost of the console itself.

You have to be able to connect 4 of any kind of controllers to your new console. Not being able to find gamepads in stores or being able to use more than 1 gamepad is really poor planning.

Unique console design and shape. You can't give your console the shape of any of your previous designs. It needs to stand out as its own machine. Also helps consumers realize that its a new thing and not maybe a redesign of a previous console.

New console name!

Hardware power matters (to 3rd party publishers) A architecture that 3rd party publishers can't complain about would mean more 3rd party ports. More 3rd party ports means less of a chance of game droughts.

As long as they have the same people running nintendo I don't think they've 'Learned' anything. Sony showed they learned something even before the ps4, it was incredible the way they salvaged the ps3. The ps3 and wii u started out pretty similar. Both being systems that lacked games and being systems 3rd party publishers wanted to ignore. But Sony did something to change that with the ps3 and Nintendo isn't doing the same at all with the wii u.

Actually, that would be arguable. The PS3 was a black hole of money for Sony, both for its developement and for all of the effords Sony needed to recover its condition. The WiiU may lose money, but its not nearly as harmful as the PS3 was. It would be interesting to campare profits and expenses of those two machines.