Exclusive Hero for GMS?

It COULD be possible that it really is the pirate hero. When nexon uses the word "exclusive", they use it in the sense of "We got it first" not "It's only for that version"

For example, NBC might have an exclusive news story about the president. That just means you'll hear it for the first time from them but doesn't mean they'll be the only one to ever publish or talk about it.

Maybe global decided they don't want to keep creating so many new classes at first like kms and wanted to finish off legend first. It would also definitely bring players to their game which they seem to lack according to some sources. If it is indeed a brand new class, it would most likely have to be

not a KoC
not a resistance
not a legend
not a regular adventurer
not a KoC instructor

So that means it'll have to be a brand new branch. If that's the case they'll probably keep expanding that entire branch of 5 classes, 1 of each subclass [warrior mage etc]. With the rate kms is going with pirate hero, thief resistance, and now KoC instructors, it'll be an extremely long time to finish off an entire new branch.

I just hope it isn't beyond stupid though and nexon NA gave it some thought as to everything that goes with making a brand new class.