I have Regional Specialization as a faction trait to grant me an extra Night Advantage 1 from the Moon region, resulting in Night Advantage 2 for the faction (since I have the N.A.1 trait from Moon as well).
If I take a different region for a class of mine, this'd replace the moon region, and thus the N.A.1 trait from there. What would happen to the Regional Specialization? Would it...:
1) Be removed for the class, since it no longer has the previously 'targeted' region and ability
2) Allow me to choose a different, new, ability from the new region to increase
3) Still grant me the Night Advantage 1 ability
It definitely remains on the class, but I'm uncertain if you would be allowed to target a new Regional ability. I lean in favor of doing so, but that's just me.