Illusion on 23 June 2015
I know it's wishful thinking, but we still don't know what Retro Studios has been working on since Donkey Kong. There's always a chance that it's a 2D Metroid that will be out in 2016. Retro has been doing a great job with the 2D sidescrollers and I can't think of anybody more qualified then them to tackle a 2D Metroid on the Wii U.
Nintendo, if you're reading this, a 2D Metroid is almost as good as a proper 3D Metroid (especially if it comes from Retro) which makes it about 500 times better than the Metroid's we saw at E3.
