No real part III revans story is never finished or told completely.
The follow up the mmo old republic is set hundreds of years later.
Still looks amazing and the story is awesome. But i don't play mmo's, and the monthly subcription thing i just don't really want to do or cannot afford really.
Plus the bioware part 2 never happened. So a lot of fans see part 2 as non canon.
I think to get the game out they had obsidian do it.
I have no idea what different direction bioware would have done, or if it would have been essentially the same game. I have no clue as to if the second game was written by Karpshynn like the first was. And the second game as released ends on a cliffhanger and part 3 would have picked up on revans story in the unknown regions of sith space.