It seems - strange - that if Teela is to be Sorceress then she can be magic-wielder and high-priestess AND leave the castle to take part in battle. Oh - and also in time marry! It seems that power no longer demands any sacrifice of its users. To me, that is a poor understanding of a complex concept - a failure to exploit dramatic opportunity - and simply bad storytelling.
I would hope that a possible film would avoid such juvenile pitfalls as the DC comics and MOTUC have fallen right into.