Way too many people in this thread going "OMG NINTENDO GAVE ZELDA TO TECMO AFTER OTHER M WAS SHIT WHHHHHYYYYY" and not realizing that Other M was Team Ninja, a subsidiary of Tecmo, while Hyrule Warriors will be developed by Omega Force, a subsidiary of Koei. Yes, Tecmo and Koei are one company now, but the two sides are still mostly autonomous. Nobody from Team Ninja or anyone involved with Other M is going to touch this game. It's going to be all Omega Force.
btw, other m was a very good action game, even if a mediocre metroid. this will be inferior, for the simple reason that mosou games have tons of limits