You do indeed make a valid point. But with Final Fantasy 15 i think its more likely they outsource stuff that takes a lot of time, or require a specific talent to do.

http://www.ign.com/articles/2014/01/06/final-fantasy-xx-2-hd-remastering-was-outsourced

Again i doubt it is MC, it may be, but i don’t think so. Square has their own localization teams, they don’t need to outsource something they can easily do themselves.

Well if it is Microsoft, it’s only Microsoft Japan helping with porting it while the other locations for Microsoft will help with localization.

I Highly doubt that. 1st it sounds a bit to conspiritorial. Square knows from experience having the game on both consoles signifcantly boosts sales, I bet the outsorcing part is done by several smaller companies, and i doubt microsoft is one of them.