DotEmu and Lizardcube recently lifted the lid on a HD remake of Sega and Westone's excellent Wonder Boy: The Dragon's Trap. At the time of the reveal it was confirmed for consoles and PC, and neither publisher nor developer would commit to the title coming to a Nintendo platform.
However, according to the game's listing page on the BitSummit 2016 site, this gorgeous-looking remaster does indeed seem bound for the Wii U. The supported platforms are listed as "PC, Xbox One, PS4 and Wii U".
The listing also confirms the involvement of series creator Ryuichi Nishizawa, who is also lending his talents to Monster Boy, an entirely separate venture which is billed as the spiritual successor to Wonder Boy.
Basically, if you're a Wonder Boy fan, then you've reason to be pretty happy right now.