With Cataclysm and WoD, I feel like Blizzard has gone too far in tampering with the older elements of WoW (general lore of the series, old zones, etc) that hold up thematically. More than anything else, I hate that the physical world of vanilla WoW is gone forever, Cataclysm was symbolic in that sense.
If you had the choice to undo the Cataclysm world change (minus perhaps, the old zones) would you do it? Why or why not?