Good questions!

The only questions I know the answers to are:

Quests
1) They've said the main scenario quests are on hold until 2.0 is out, but they will continue them. Since the latest GC quests have dealt with the impending Seventh Umbral Era and/or 2.0 changes, they will likely continue to develop with each patch.

Crafting and Gathering
1) They have mentioned that they have something in mind for artifact gear for DoH/DoL... whatever that means.