Well I would not say that Final Fantasy has sexual themes though I do think it is quite close to that. Maybe something close to a little "sex scene" can happen. There are some bad words in Final Fantasy so yeah that would work. I guess it looks like the most mature Final Fantasy yet. I think its possible for an M rating with Blood, Language, use of Alchohol, Maybe some little things close to sex and Partial nudity. Final Fantasy has to go M sometime right? Anyway NIER a new square enix game has so many bad words including the f word and so much blood and possibility of sexual themes. So who knows?