Can you not respec from one sub class to the other? Sorcerer can heal and is the other inquis subclass.
Not really, no. They want this choice to matter; you can respec within your advanced class (ie, go from a tanksassin to a DPS assassin) but not jump from one entirely different animal to another.
I'm rolling marauder, assassin, operative right away and I dont know what my main will be yet. I loved the assassin and operative far more than I thought I would.