Should there be more than one of Muto?

There definitely should be more than one.

There are two mutos. I'm just speculating that "Muto" is just the word for "mutant" monsters created by man. I think they just don't want the military to use the word "monster" as it doesn't sound very official, but neither does mutos, which could very well just be codename for monsters.

Since these spider-looking things are looking to be a bunch of,well,spiders in comparison to Godzilla having the proportionate scale of a crocodile to the Mutos as spiders,there would need to be dozens,maybe even close to hundreds of them,and they'd also probably be the only mutants that could be defeated by the military,leaving the inevitable big mutant to Godzilla.

THEGMAN123, I agree. I don't think that's the official name for this monster. I hope we get a trailer on November 3rd, highly doubtful, but maybe. As for the kaiju seen in the 2012 SDCC trailer. I think its a giant salamander

Im not really a big fan of his name, but we know that he has 6-8 legs and is NOT a spider... if you saw the first leaked trailer online you could have seen something that was a dark red colored, Baragon-like skin, but i dont think that is Muto

I also think that "Muto" is a reference to the type of kaiju