There is going to be some level cap content in mod 8, October. There will be a level cap increase (likely to 20) in Mod 9, January.
I think Shroud crafting is the best form, and one of only a couple of forms of "alternative character advancement" in the game. I think it is good that we have that, and it should be encouraged with more levels. Without the Shroud wed be stuck with the old raid-grinding and endless loot-running and selling of junk loot.
When we reach level cap we look for other ways to improve our characters. I think it makes sense that the Shroud should become easier with new levels and abilities. That is how the game has worked for 2 years.
The Shroud will still likely be on a timer. It can only be farmed so often, even by players that have 5 or more characters to repeat it. Not very many people have the RL time to repeat it this often. These Shroud farmers won't be selling all the ingredients they find either. Popular large ingredients will still cost in the several 100,000 gold each each, even with price deflation. The junk loot we sell from level 19 and 20 quests will not be that much more valuable than the current junk loot. It will not suddenly become cheap to buy 5 scales and stones from the AH. Most players will not be able to afford that very often, and on the occasion they do, that only gets them part of one item, and they still have to personally repeat the Shroud enough times per character to get the 3 or 4 Power Shards each.