To be perfectly honest- when has that stopped them before? Bayo 1 and 2 weren't censored at all when ported/made for the switch, and Bay 3 even had Innocent Angel mode, so it doesn't make sense that a 4th game would be so explicit that it doesn't pass ESRB ratings.
As well, Kamiya has departed from Platinum Games, so it's unlikely there'll be a fourth game... unless you know something I don't?