It may be too early too speculate, however, based solely upon the brief clip from fanfest? After a long while of waiting from 2.0 beta and an even longer wait for those promised a gun class in 1.0, It's safe to say that at least a small amount of disappointment is in order.
Maybe I was the only one who'd gotten excited when they saw Merlwyb dual wielding guns for the Leviathan arc, maybe I was the only one who associated a more pirate styled class with a city built by pirates for pirates with gunpowder.
Again, it is very early to be completely downtrodden, though, with the Machinist only firing 1 gun and seemingly employing a potential pet mechanic into the mix? After all this waiting and staring at the 2 crossed gun sign in the marauder guild I can't be the only one who feels a little bit let down.