So... that spiderman shirt... (new job tease)

[Shougun]

I doubt it would be Raubahn. If anything Raubahn would be BLU and not RDM.
He fought a lot like a BLU during the scene that you mentioned. One of the abilities that he used was actually a lot like Ifrit's Radiant Plume (Which places red circles in the outer part of the arena and then the inner part).

Also (I know a lot of people hate it when XI is brought up but..) there was an NPC in XI named Raubahn who was a blue mage. I know the games aren't related at all but I thought it was a nice reference and perhaps it meant something.

Oh nice I like that too, would also fit nicely because Raubhan seems more of a tank type, also known as a bull (another animal) and has made a sound that doesn't even sound human. Pretty sure the armor or something like it is in game and is for tanks too. Blue really makes sense to be that sort, unless they just change how it works a bit (entirely possible). I mean it doesn't HAVE to be tank, but at least most easy fit seems tank.

I do like the mention from FFXI though, I know people aren't a fan of FFXI sometimes because of whatever reason but a lot of same members on the team from that game and reasons why they like and fit particular names together. SE loves to carry things through to other games. So if you find a reference its high chance to be done again later haha.

Anyway, love my leaders and hope Raubahn gets more treatment lol. Watched the cutscene with him fighting and was like YES, MORE! Such a boss. XD.