Archanist Question(s)

[Skies]

Classes like musketeer are already in place at cities, but if they do this to the katana wielding class I'm going to call a huge BS retcon flag.

Nah, that's called coherency. None of the base classes needed unlocks, why would a new base class need an unlock?
There are many things that could be done, the guild staff could move into one of the cities, the guild could be set in a completely new city too, but the seventy-seven caravans would see that the weapons are sold wherever it's needed.

There are ways of gracefully handling adding a new class, putting it behind some bs quest is not one of them given how no other class was hidden behind a quest.