MDMAlliance on 05 February 2015
Well, one thing to think about is that Majora's Mask 3D, compared to Wind Waker HD and Ocarina of Time 3D, is an actual full-fledged remake. WW HD and OoT 3D will likely be labeled as remasters, since they don't generally change very much except for the visuals. Majora's Mask 3D has many small changes to the game, including some of the mechanics. So it would make sense that it took longer.
