Although it would make sense to bring in musketeer with 2.2, given that the patch centres around Limsa Lominsa where the Muskateer guild is, i just think it's too early for a new class and I don't see it happening.

A new class, especially Muskateer, is a major card for SE to play and they wouldn't just waste it on a patch this early. It'll be used as a selling point for the expansion, or if things get desperate and the game needs a breath of life. Despite what some would have you believe on here, we're nowhere near that stage yet.