I wouldn't mind it.
But no Saradomin'ists or Armadylian's recolonizing.
Saradomin and friends already have enough city's and land, Arma and the chipmunks will get a entire planet with Rop, Seren and crystal addicts have a entire city, and probably will be living together with the birdy's on their home planet, if Arma and Seren will help each another.
-Zamorakian's, because it seems fit, and it will be nice to see a decent Zamorakian society.
-Bandosian's, same as Zimzamian's, but with human followers. perhaps both of them clashing with one another for land and resources.
-Zarosian's, it was all purple before the war and nuke, and still holds some of their architecture . But i believe it fits better to have them a entire underground city or something at the temple at the Dig site, or something.
-Godless, well perhaps some of them or guthixian's trying to heal the land or searching for resources or something.
"If you believe you can distance yourself from the harm you cause, you're deluding yourself. You're not some mindless tool. You're accountable. Your actions will catch up with you eventually." -Jedi Master Jun Seros; Swtor Bounty Hunter storyline.