Where was Turalyon & Alleria? Did they already leave Argus before Antorus? It's weird that Blizz would make a big deal out of those characters returning only for them not to do anything in Antorus. I mean, seriously, Alleria and Turalyon have been fighting them for such a long time and as soon as we are finally able to get in there and finish them off they want nothing to do with it? So odd.
Also, What happened to Maiev? She had a big role in Legion, especially the stuff in the Broken Shore with Velen, Khadgar and Illidan. It's weird that she never went with them to Argus even though this is most likely Illidan's send off.
Other than that, it was a great cinematic. I just wish those 3 characters were there.