Title says it all.
Everyone seems to agree it had good background story and aesthetics for the orc clans and draenei, and interesting enemies in the form of the Primals/Breakers, Arakkoa and Gorian ogres, but a rather rubbish core plot with the handling of the Iron horde's behavior and the characterization of its leaders.
Here's the thing.
We can ABSOLUTELY stick all the Orc clan aesthetics and other bits from WoD like the High Arakkoa and Gorians and even Primals / Breakers on pieces of Outland that we just hadn't discovered yet.
Phase/Instance them to use them as start zones for races or as new questing zones similar to Argus.
We NEVER have to speak of the AU and its terrible time travel nonsense again.
"But Sky, what about Yrel?" Well sometimes to save the body you have to hack off a few limbs, forget Yrel you have Commander Fareeya and the Lightforged now.
"But Sky, we can't just pretend it doesn't exist! It's a whole planet!"
I say, OH NO, A TERRIBLE MAGIC SHOCKWAVE FROM SARGERAS STABBING THE WORLD HAS DISCONNECTED US FROM ALTERNATE DRAENOR What a terrible shame...
And the Dark Portal goes to Outland again, the REAL Draenor and we're all happy.