If They Need Class Inspiration...

[Soge01]

This is a misconception, Raubahn may have had two swords, but he never to my knowledge actually dual wielded them, the few times we saw him fight (such as the cutscene of his famous Colleseum fight that earned his freedom and his place on the Syndicate) he wielded a single blade while parrying strikes with a buckler on his left arm, just like any regular GLA. Raubahn is just a regular GLA, albeit one with his own unique attacks. (And besides, he ended up giving one of his swords to Pipin anyway, who wields Tizona like a great sword, but then, he is a lalafell so it's expected. )

Merlwyb's class also was always meant to be added since 1.0 (Musketeer, or MSK for short) - it even has a Guildhall in the Coral Tower (which the MRD's Guild ended up taking over) but it was never implimented and whatever SE had been designed for it probably was used for MCH instead, so that airship has long since departed (my suspicion for MSK's no show in 1.0 was due to how 1.0 played - back then ranged classes like ARC/BRD required ammo to be equipped that had to be crafted, like in FFXI, and with ARCs' already complaining about the high cost of making arrows, having to make bullets for MSK would have been too much, and so it was put asided and just quietly dropped and forgotten about, even in ARR when things were changed and ammo was no longer needed to be equipped, with ARC/BRD's arrows just... handwaved away).

MCH's guns are actually superior to the obsolete relics the Limsans use anyway, given MCH makes bullets from the user's own aether, allowing for rapid fire and automatic loading, where as the Limsans like Merlwyb are stuck with single-shot muzzle loading flintlocks that fire balls not bullets (the quest to unlock MCH actually rubs the technological disparity in the Limsans' faces, where Joye gleefully blows Rostnsthal's flintlock out of his hand with an aetheric bullet from her automatic rifle before he can even pull the trigger, basically showing how utterly technologically outclassed Limsa really is). So that's another nail in MSK's coffin sadly.

You could easily say that about Thancred, too. Wasn't he basically a gladiator with a knife since 1.0 until Rogue and Ninja started to be hinted at being added in 2.something?

Just because Raubahn never was really shown using both his swords at once doesn't mean he never did.

Also, just because the Limsans use inferior guns doesn't mean Meryweb's fighting style still can't be added eventually. Hell, some of the attacks Meryweb uses with her guns are strangely overpowered and can do things a normal gun of their make shouldn't. Like performing an overpowered version of shot gun blast with gigantic floor cone indicators. So I wouldn't count out her fighting techniques either just because mch is technically superior.

[Shurrikhan]

You could easily say that about Thancred, too. Wasn't he basically a gladiator with a knife since 1.0 until Rogue and Ninja started to be hinted at being added in 2.something?

He started off as a rogue v1 (gigolo/philanderer... who worked occasionally as a spy), upgraded to rogue v2 (knife-thrower, but otherwise just a basic single-dagger user), to rogue v3 (dual-knife user, some actual stealth), to... gunbreaker. /shrug

[Soge01]

He started off as a rogue v1 (gigolo/philanderer... who worked occasionally as a spy), upgraded to rogue v2 (knife-thrower, but otherwise just a basic single-dagger user), to rogue v2 (dual-knife user, some actual stealth), to... gunbreaker. /shrug

It was also stated in the game he learned the ways of the gladiator. So he held his knife one handed while using their fighting style for a reason. That reason? Couldn't say why. Don't remember. But yeah, I remember him using a few rogue-like techniques, too here and there. Mostly the knife throwing.

And speaking of Rogue....Maybe FF10's version of Thief could be added to the game? With Rikku, it was bascially half thief and chemist that created items/weapons through random stuff she would steal off of enemies.

Since Ninja is far from anything a Rogue is at this point, it would be nice to get a good replacement that actually functions like a thief and not a naruto/sasuke knock off. Seriously, I love Naruto, but its getting pretty ridiculous with all these knock off techniques from the series. xD