June 2017
I would like to suggest you create a Wii U version of the game as some do not own xboxes or play stations and the touch screen could enhance the gameplay
June 2017
Unfortunately this isn't a possibility because the last time I checked the Wii U is not supported by the Frostbite 3 Engine, which is what powers GW2, and at this point in the games lifecycle it is unlikely that we'll see any sort of attempt to port it over.
Nintendo has done a lot of innovative stuff over the years but unfortunately their machines haven't been able to compete very well in terms of raw "power" with Xbox One or PS4.