World-of-warcraft – How to do the The Thane of Voldrune quest

To be honest I think it's a bit too early to say right now. On the PTR even in heroics tanks are getting beaten up pretty hard, as they scaled up monster damage output, so the numbers will probably get rebalanced a bit before the patch goes live.

The biggest thing to get your head around right now is the revamped system of every healer having the three base heals - the slow, small efficient heal, the slow large heal, and the fast inefficient heal. They apparently expect healers to use the slow small heal when there is not much else to do, and to balance the other heals with their cooldowns during heavier damage.

Also, right now I'd pay more attention to what Blizzard says about healing than what the experience is like on the PTR. Here are some recent examples:

• State of Holy Paladins
• Holy paladin nerfs
• On healing difficulty

The reason I say to watch what they say more than what they do is, they've been very clear that if the PTR behavior doesn't match what they have in mind, they'll tweak the numbers until it does. In the last PTR patch most healers just spammed their slow, efficient spell because it was getting the job done... so in the next patch Blizzard nerfed those spells, as they want them to be only a fallback and not strong enough to stand alone. That sort of thing may well happen once or twice more before the patch goes live.

Incidentally, I find that checking the top page of mmo-champion to be the easiest way to keep track of Blizzard's position on things.

You answered it yourself. The zone is phased only while the quests are active. Either complete them or abandon them and you can do whatever you want there.