It is coming. This much we know.
When it does come, my only question really is will some the hard to produce ascended material required be the same ones required for the weapons? ie Mithillium (I can image yes to this), Spirit Residue (Not to sure there is a logical place for wood in armor making) or Thick Elonian Cord (a possible imo).
If so it would be nice to know what to stock up with. Also will Bloodstone, Dragonite and Empyreal Stars be used? I hope so.