me too in fact i was expecting him being connected to the storyline from Admiral Taylor, with gul'dan being behind the attack and retrieving the corpses of the fallen alliance knights and experimenting with necromagic to create the first generation DKs.
Then i expected the dark riders roaming tanan, Teron in it's knight form being in the last part of the leg quest and then becoming a boss in Hellfire, unfortunately we get this blob that completely ruined the myth for me at last.