Yes to Lich King and Sylvanas… no to Thrall.
If I were to put a fine point on it: the way Ion was building up “we left someone who’s seeking revenge”… I was like: “Whoa, are they actually going to do a TYRANDE cutscene? Is the Alliance going to actually do SOMETHING for a- oh, of course not. WTF was I thinking. Alliance? Do something - Sylvanas does things.”