Spoilers : Non-Core Plot : Korriban 
  
Alright.  I went through the Cave on Korriban, and into the Sith Tombs.  I got to the end and BAM!  It's Revan!  Ok, wow!  He's got a red lightsaber and a purple short lightsaber!   
  
Wait a sec 
Isn't that what I used in KotOR?  So curious over this, I check.  And yes, my Revan used a red lightsaber and purple short lightsaber. 
  
Is this what he always appears with, or did the game datamine my old save to see what Revan used?