Ooh I kinda forgot about them. There's no reason why we can't have scenarios (Or even dungeons I guess) show the war progression in certain zone on Azeroth such as Ashenvale.
Fact is the 1-60 won't be redone. Either way though it's in the past and isn't concurrent. So in much the same way Dragon Soul changed Dragonblight, we won't see it but we know it's there.
That may be the best way to show such things.
---------- Post added 2012-10-29 at 10:48 AM ----------
I'm not saying it won't evaporate, because I know it does.
I'm stating that atm the majority of Orcs support him. He was seen as a war hero back then, and his popularity was one of the reasons Thrall chose him. We're still seeing the Orcs support him even after Theramore which left all the other races shocked, meanwhile the Orcs decided to party hard in Orgrimmar.
The other races don't like him, but they themselves aren't the majority in the Horde - it's the Orcs.