I don't know what the various starred level stuff is going to be come Heavensward. HOWEVER - I expect the addition of entirely new gathering/fishing spots, and the recipes to make use of those with little imported from ARR. The Ishgardians don't seem to import much, so it makes sense that whatever we can craft from there won't require much from the rest of the world either.

IMO the thing to stockpile will be shards, crystals, and clusters.