If they added a gunblade class in any form, it would be awesome. Such an iconic and important class for the Final Fantasy series. They shouldve made a gunblade class imo instead of the upcoming machinist/engineer/musketeer class.
The gunblade class could work as a mid-range DPS class, that has to go to melee distance every now and then and hit once or twice with the blade to gain a buff for the upcoming gunned ranged attacks. I would love something like that.