As Bootsiuv noted, having a T rating on a game is a far better position for a game company to be in (read: sales). A lot of game retailers will restrict sales of M titles, and thus miss out on a lot of holiday figures because parents and grandparents will not buy an M-rated game for their kids. Therefor, I do hope that they do not include a good amount of blood in it, BUT I do hope it remains an option to include it using third-party modifications. It gives the company the best of both worlds... a T rating AND the option for blood and such for those who know where to look.