I liked Salvor a lot more this season than the first, but there wasn't really much more to do with her character. Hair and Gaal are the ones with the PSYCHO POWER and they're going into the future now. Her death shows the future can be changed (unless she gets cloned or something and the clone dies in the future.)
Supposedly it was looking good for a third season before the STRIKES. Apple seem to have a fairly good record of renewing things.