Personally for a Kotor3, I would like to see the loose ends tied up a bit.
Whats up with Revan? where is he? Is he live or dead?
What will/has become of the exile? Whats the deal with this "true" sith menace?
What has become of the rest of the characters in your party's that you spent considerable time "getting to know" and helping? Im sorry but the Kreia predictions didnt do it for me as to my "friends" outcomes.
Any good story has closure.
George Lucas himself is stuck on trilogies to tell his on screen tales. 2 sets for Star Wars as a franchise, and one for Indiana Jones. It only makes sense to continue with Kotor3, and tie up any loose ends and finish this story "arc".
Then the series could venture to a new direction, not involving or needing the Exile and or Revan.
Again, just my opinion..but weve spent alot of time over 2 games to not see this arc wrapped up neat and tidy.