Ok, first of all, incredible job with those animations and style, a new class is a more than welcome addition to this game. But as the game balance is right now, the last thing we need is a DPS. Not only that, another "popular class" like DRG and MNK.
Do not missunderstand, im a 100% sure RGE/NIN is a very nice work from SE. But it just will not shine if not added along another 2 classes to create a properly class balance.
I will put this in 3 simple arguments for this:
1.- Overplayed: Most players already have their DoM/DoW leveled to a point any new class will become overplayed almost inmediatly if presented alone. You can already see a million RGE/NIN running arround fields and FATEs, not to mention the impact on the economy for their weapon demand and the impact on the DF who is already very unfriendly for DPS players.
2.- Duty Finder is not Balanced: Party composition in this game is done by having 2 times more DPS than Tanks and Healers, point is, the game already have more than 2 times DPS classes vs Tanks and Healers, which is the main issue behind the DF queue times and even more, the lack of appeal of Tank classes makes everything worse. Adding a NIN now (2.4 update being in 5 months maybe) will make this even worse. NIN is another trademark job from FF, just like DRG, BLM, SMN and MNK will pull a lot more players in than other classes, and being the only new shiny thing is gonna make things worse x10.
3.- An oportunity to Balance things and make experience better: If NIN is implimented with another Tank and Healers, the DF issues will become a thing of the past, and the whole experience of leveling all these new classes will become fresh and smooth since players will have to divide between 3 new classes and not just rush the same one.
Having said this, i really hope at least someone is not just hyped but is also aware of what would mean the addition of another DPS class in the actual class balance.