In my opinion the savage gear should just be in a tier of it's own in the next expansion, make it 100 ilevel higher than whatever the highest ilevel tombstone or crafted gear can give you; make that the bar for entry into the first floor of the new savage raid set and then just keep the patch cycle rolling increasing the ilevel of each tiers appropriately. It will keep the old savage content relevant and create a long term goal for players to strive for.