When Minecraft launched in 2011, it became one of the most addicting games of this generation. Mojang, the company who created Minecraft, came into agreement with Microsoft in 2012 to release the game on the Xbox 360.
In a recent interview that took place on March 5, Mojang’s Jens Bergensten stated that Minecraft could hit PlayStation consoles once Microsoft's exclusivity deal runs out, but it's unlikely for the game to hit the Wii U. It seems that Mojang doesn't like their game being in many places at once. The company launched Minecraft - Pocket Edition in 2011 for mobile, but it would be crazy for a company to skip mobile devices. Last month, Minecraft: Pi Edition was released for the Raspberry Pi, so you can see that Mojang is very careful about where they distribute versions of their game.
Nintendo probably hasn't contacted Mojang to bring Minecraft to the Wii U at all. Sony, on the other hand, probably brought up the idea shortly after the Xbox exclusivity deal started. Based on this, it makes sense that Mojang would bring the game to the PS3 and PS4 in the future. It's still unknown if the game will actually hit PlayStation systems, but it's very likely.
Will Minecraft ever be on a Nintendo console? It's always possible, but first, Nintendo needs to convince people that their system is for all ages and not just small children. Once more Wii U units are sold, a large amount of developers will eagerly want to develop for the system.