I'd honestly most prefer that gunlances, and perhaps even gunblades, be achieved through expansion-unique systems making use of (magi)tech, like oGCD skills to accelerate and empower upcoming queued skills, close gaps (in the lances case), or to fire off modified ranged attacks. If we could see classes brought back into the fray rather than being torn out completely, with all but the unique skills being shared (Clemency, Requiescat, and Holy Spirit to Paladin alone, but Royal Authority, Goring Blade, and the like to it and Gladiator), a Lancer with a gunlance and magitech skills aplenty to fill the missing slots could be quite entertaining.
