I assume it'll be out shortly, though I don't know the timeframe for other skips in ARR and Heavensward.

But might I say, as someone who was also anxious about tanking new dungeons (mostly since I'd taken a long break and came back late into the expansion) you really can't go wrong just pulling a couple packs at once, seeing how it goes, and then pulling more (or less if things went poorly) from there. I can't think of many special things that tanks need to worry about in any of the new dungeons. But I get not wanting to bother with it at all.