I'm expecting Omicrons to end up being the third "beast tribe" given they've adopted a cultural salvage operation as their new directive in the wake of the Stigma Dreamscape dungeon and that progressing their story will see the Nekropolis gradually filled with simulacrums of various extinct races.

I reckon those dragons won't be too happy if they learn that their destroyers are holed up just a couple malms from where they are, though...