Don’t think this “Royal Templar” will be a class. Think she will be an NPC, maybe when the next arc comes, finally entering the Capital for the battle against Giltine, she will be leading some actions, as her armor resembles Vicentas’. Or maybe she will be inside guild area, providing items and stuff. I might be wrong tho.
Also, this idea of locking some classes under another might not be good. I dunno what they’ll do with Chaplain, but with this new system, this idea can be against some diversity, as we cannot pick 10 classes anymore (as much as this is not done, but possible, today).