A person over at theforce.net boards posted this info. I am not sure if it is true, but it is very intresting.
Avatorn
"I just read in a newsletter that the huge twist in KOTOR: SL is that the Star Forge that was destroyed was not really the Star Forge! The Jedi knew about this all along and were actually hiding the real Star Forge to use for themselves later! Revan found this out and banished himself from the Jedi and went into exile in the outer rim!"
I think it makes sense for the LS Revan to leave, but what about the DS Revan?