I'm not saying the new gun class is going to be... but its going to be...

[ZReport]

Aliquis, I think your idea is cool, but you are giving out way to much bias towards what you want to see (which it's fine, you're the OP and it's essentially your thread and your ideas). It's more than likely not going to go that way, if they continue to go through with their earlier plans for Musketeer:

Live Letter III -- http://www.youtube.com/watch?feature...SH2jkjw#t=925s

A: Well, we haven't really decided when. We’ve been talking a lot about samurai, ninja, ranger, and thief, etc. but first we're looking to add the class that will be most interesting and effective from the perspective of battle balance. We still don't know which one will be next.

For A Realm Reborn, we're revamping everything. As you can see here, armor and weapon slots will be separated to be on the left and right of the interface. In the case of musketeer, a double-barreled gun is a weapon that requires both hands, so it takes up two slots. But sometimes you might want to dual-wield, so we're making a more flexible system that lets players do this. Naturally, these changes will be introduced properly with major updates in future, so please rest assured.

Well to this you might say, "Oh, but he didn't go into detail when he said 'dual-wield,' so it could still mean a rapier and a gun." Here is where visual context means much more. Click on the link -- it will take you to the exact moment where he explained dual-wielding with Musketeer. In his very short explanation, he goes on to talk about how Musketeers use a double-barreled gun with both hands, but if they want to dual-wield, it's also cool too. Look closely when he mentions dual-wielding, he puts up both of his hands and makes trigger fingers in a cowboy-esque manner, implying that it would be dual-wielding guns. Ironically, in the 2.2 cutscene "The Sea Rises" we are treated to a scene depicting dual-wield gun slinging by the Admiral herself.

Reinhart's Translation:

F: When are you looking for musketeer release?
Y: We don’t have a set date but we are talking about ninja’s, samurai’s and all that so we’re thinking of adding something that’s balance but at this time we haven’t decided yet on which.
Y: For musketeer say for example the gear has left hand, right hand and you want to duel gun we have the system setup so those will work when we do release stuff like that.

Reinhart's Text-Translation:

銃術士はそれよりあとに実装予定で二丁拳銃の仕組みまでは考えてるとか
Musketeer is planned for after that and also thinking of duel gun

Extracted from finalfantasy.net:

Q7: When will musketeer be implemented?
A7: Including samurai and ninja, we are currently at the stage where we are looking into which we would like to add next, so we haven’t yet decided on the specifics. However, in the future we are imagining dual wield and double barrel guns, so please look forward to it!

Considering how the system works right now (and how they want to plan the jobs that dual wield weapons), it obviously won't play how they depicted it in 2012, so it's very possible that you will get two guns as your main slotted weapon, similar to how Rogue/Ninja will work. I personally have no problems with it being implemented how you depicted it, but it would severely detract from what they envisioned from this Live Letter.

Anyone stating that it will be a gunblade is too far off the mark. He's for years now stated that it would be double barreled pistols, not gunblades.

\1.0 is over with. Musketeer isn't around, and Arcanist is.

Terrible argument. Musketeer isn't around simply because Yoshi-P and his team deemed it more necessary to include a Pet (Arcanist) and a Scout (Rogue) class in the base vanilla game before anything else. He's accomplished this fact with 2.4, so now they can look forward to implementing Musketeer and any other number of jobs they are cooking up now. I can show you referential material stating this if you want, but it's so easy to extract from Google if you go looking for it.