Personally, I'd love for anything Sega and Capcom to be localized.
Especially:
Phantasy Star Online 2 (PS4): One of the most requested localizations in general, I see it on nearly every "most wanted localizations"-lists
Yakuza series (Yakuza Ishin (PS4), Yakuza Kiwami (PS4), Yakuza 5 (PS3/PS4) and Yakuza 6 (PS4)): Physical release of all preferred, Yakuza Zero gets a physical release in the West in 2017
Dragon's Dogma Online (PS4): Western RPG fans (and reviewers) loved Dragon's Dogma and Dark Arisen, a physical version of this MMO would be a great localization
Monster Hunter series (Monster Hunter Frontier Online (PS3/PS4) or Monster Hunter Frontier Online 2 (PS4) rumored to be revealed during 2016): Monster Hunter Tri and 4 showed that the franchise is growing in the West
