Nintendo of Europe posted earlier today that Trine: Enchanted Edition will be arriving on the Wii U eShop later this month.
— Nintendo of Europe (@NintendoEurope) March 9, 2015
Frozenbyte has taken the original Trine and utilized the engine that Trine 2 was based on; with the results looking very nice. You can see a few screenshots below.
In addition to the updated graphics, online mode has been implemented into the Enchanted Edition. A specific date will most likely be coming very soon.