The Wii-U was not abandoned abruptly. Total failure was clear from the very beginning and it is a wonder they supported it so long and with so many games where all the 3rd parties did abandon it early because it was impossible to make any money because of the low user base.
If they marketed the exact same system with a Wiimote instead of the Gamepad as Wii HD and included Wii Sports, the success of the Wii could have been easily repeated as there was a huge market for high definition gaming. And it was a bigger mistake to abandon the original Wii so early, a system with 100 Million paying customers, that could have been easily converted to the Wii-HD.
Even nowadays people ask if Zelda Botw is playable on the original Wii because nobody in the casual market knows that the Wii-U exists. And this is Nintendos fault and might be repeated with the Switch.







