*spoiler for those wo havent read the revan book*
According to the book revan was a good match for the emperor and could have beat him if he didnt get betrayd by lord scourge. Which means he might very well be the strongest person in the sw universe at that period in time.
He is also a very love character for everyone wo playd the kotor games.
Beating him ( alto in a weakened state ) in a low lv flashpoint doesnt feel right. He probaly is gonna make another appearance seeing as how the fight ended hope he can be a real powerhouse thenn as he was always portraid