Well, as I said Cali is currently in Conquest as a recruitable NPC. Her character art is slightly different, but recognizable. No real story yet, but you can recruit her very early. Chole may wind up in Conquest as since Mav seems inclined to port popular NPCs from SfP.
All of the art assets in both Conquest and SfP are stored in the import format. It may be part of image management for the Godot engine.