I wonder if this would mean return of "there are not enough quests to level" complaints.
One would hope they have learned their lesson on this one and put enough quests in this time.
I'm guessing the player base's biggest fear is that there will be some surprise new "feature" like the GCD, the busted LOS, The Mighty Shield knight nerf, the % mana nerf, etc. Funny that I used to look forward to new patches, now I hold my breath and hope they don't break things too badly.
Hopefully some things will get fixed though, even something simple like the first tick on HOTs would be nice, maybe put the floor back in before KT last boss, etc. I'd love to see a release that was just to fix game play issues, NOT add new features, just fix broken items. In fact I'd like to suggest a bunch of those type releases. Not rewording an item's descriptive text, some real meaty bug fixes. If that cannot be done I'd like to see a QA group formed to test the new content AND THE OLD content before the new zone is released, and if it doesn't pass muster, DO NOT DEPLOY THE PATCH!! Send it back to RW to be fixed with a note saying "we will no longer accept fail patches, our customers are too important to us to do this to them again and we are making a stand".