No, Minecraft does not have cross platform abilities so you can only play with people using the same console
No, there is no Minecraft for the Wii or Wii U, and no plans to do so have been announced.
No, there is no Minecraft Game for the Nintendo Wii U. However, it was announced that Minecraft Story Mode will be coming to the Nintendo Wii U
The chances of Minecraft being ported to the Nintendo Wii U is extremely slim. This is mainly because the userbase on the Wii U is small and that Minecraft was bought by Microsoft.
it depends on what edition on xbox it is 16 on wii u it is 20 in pc/mac it dose not have a limit
You cannot buy or sell Minecraft for the Wii U since it was never released for this platform
i am not sure but i think they are working on it
Currently, Notch has no plans on making Minecraft for the Wii U. None that he's shared, anyway.
No, the Nintendo Wii cannot play Wii U games
No, the Wii cannot play Wii U games. It's actually the opposite - the Wii U can play Wii games.
Nothing has been confirmed but it would seem very unlikely since the Wii is soon to be replaced by Wii U. If Mojang do develop Minecraft for a Nintendo system it would likely be 3DS or Wii U.
No, the Wii U cannot play Nintendo DS games