Is there a hint of a future job according to this character (spoilers)?

[Iscah]

also they are blue mages not because of a name but because 1st off duel weilding swords with that shape and 2nd off THEIR ATTACKS ARE ALL NAMED MONSTER SLASH LIONS ROAR ETC WHICH ARE BLUE MAGIC BY DEFINATION.

No, their attacks are blue magic "by definition" when they are the same specific attacks used by certain monsters.

Otherwise gunbreaker and dragoon are now blue mages because they use "fang" and "claw" attacks.

the second The samuria fat dude lands in the port is during heavenward ;p

That would be post-Heavensward, approaching Stormblood, when samurai would have been well under development if not already announced.