Is the ESRB rating for this game announced yet? I don't think it is, seeing as the game isn't done yet, but still. If it isn't, what is it assumed to be?

I don't know, an M rating is extremely unlikely. Even though Nintendo is moving onto T ratings, I doubt they would create a new M rated franchise. They are first party and, to sell consoles to families, they do need to keep a relatively friendly image. This is a second party game, so Nintendo is in charge.

I'm guessing T. It has blood and violence, but so far it looks no worse than a T game.

quote Jaw Knee

Ah, I doubt it'll be an M, from what I've seenn. If ESRB has to be a wuss and say "the blood is too gory" then it's possible.

The ESRB CAN be very wussy like that! I hope that it's a T, cause if not I can't play it!

More than likely it'll be rated "T"... but it has a chance of hitting the Mature rating.