Prediction time:

Restriction on Myth removed, lockout on turns 1-5 of Coil removed, more Myth from dungeons, 1-5 easier to beat, new restriction added to new tomes, and weekly lockout on 6-10. CT will probably also see a shorter lockout, like 3 days as opposed to a week. Then again they might remove the lockout for that too since we'll have ilvl 100 or 110.

But it's hard to really say what they'll do. Usually they remove lockouts on older content and put them on the new content in MMOs, though. So we should see something like that for 2.2.