In Fallen Empire, he indeed does seek her out as a Force ghost and they provide additional training to the Player Character together. One imagines they might get along quite well if she weren't a Jedi and he a Sith. Each is a Reasonable Authority Figure to their respective faction, and a mighty warrior. As a leader, she's everything Saresh is not, but sees herself as being.Enemy Mine: In Shadow of Revan, she forms a temporary alliance with Darth Marr and the Empire to deal with Revan.Dissonant Serenity/ Tranquil Fury: Her being able to fight like this left Eldon Ax in awe.She's also one for the Republic, being the Reasonable Authority Figure that Saresh is not. Big Good: She's Grand Master of the Jedi Council, after all.Battle Couple: Annihilation confirms that she used to be one with Jace Malcom.Barehanded Blade Block: To a lightsaber.
The main difference is that while Satele leads the Council as Grand Master, there is no Grand Master on the Dark Council despite Malgus being considered its leader after the Emperor. A few years later, Satele is the current Grand Master of the Jedi Council. She started out as a Padawan, then a Consular during the return of the Sith Empire. Descendant of Bastila Shan and Darth Revan.
