This answer reached 5 votes with no downvotes, so I went ahead and edited all questions with the tag. Out of the 8 questions, 7 were specifically about the Wii U edition (and not general MC questions) so I added wii-u as well.
According to the Minecraft Wiki article on console version history, Minecraft Wii U edition is up to date with the other console versions as of Patch 3 (Feb 26 2016).
Since the Wii U edition is the same as the other console versions, it should be merged into minecraft-console.
It only has 8 questions, so if the community agrees I will retag the questions manually.