You kinda have to wonder, with all of the changes being applied to loot, and especially the the new epic gear being added to low-level instances, what Bliz plans on doing when these items get disenchanted. Are there going to be new enchanting items introduced? New Shards? New Formulas? Unlikely, but with the attention Bliz has lately been giving to low-level content, it's not completely out of the picture.
Food for thought. ;)