As many people know the production of the Wii-U was discontinued back in early 2017 mainly due to how poorly the console did in sales since its initial release back in late 2012. The Wii-U has managed to sell roughly under 10 million units worldwide since its release despite having awesome games such as Super Mario 3D World, Mario Kart 8, Nintendo Land, Xenoblade Chronicles, Bayonetta 2 and others. If Nintendo did not discontinue the Wii-U console when they its highly debatable on how much the console would ended up selling between 2017-2018. Some would argue that the Wii-U may not have even reached 20 million units worldwide in sales especially considering the fact that the Switch console has managed to hit at least 22 million within the past two years. If the Wii-U remained available in retail it would most likely continue to lag in sales especially since everyone is more interested in the Nintendo Switch right now.
The fact that the Wii-U managed to sell less than 10 million units worldwide in the time span of four years tells you everything you need to know about how much of a flop the console was commercially in comparison to systems such as the Wii, Nintendo Switch and evening the SNES back in the 90’s. However, knowing that the Nintendo Switch is not backwards compatible with Wii-U games its possible that titles that appeared on the last generation console will be even more of an attraction today than they were following their respective releases.