Well, it certainly wouldn't be a Behemoth specifically, simply something kind of styled after one, more or less. To my knowledge, none of the existing races are actually native to Eorzea; perhaps this races could be the first, thus explaining their resemblance to the Behemoth? That, or just alter their appearance a bit more, so that nobody even makes the connection.

For me, it's not about the Behemoth specifically, just that I want that "type" of Race. Powerful, bestial, and intimidating; something a bit outside the norm. Behemoths already have a pretty interesting look to them, and particularly in that last image I linked, I could just see that so easily fitting a playable race, if they stood upright.

I'm also down with a dragon-themed race, I just don't think that it's going to be anything like what I'm looking for. Judging by Nugiri's appearance, it looks like it's basically going to be another Miqo'te, but with reptilian features instead of cat ones.