-Yes to the (3) Draenor pcs.
-Garrison Rare Missions that give 610 iLvL gear. The ones that give 615 we can't wear.
-Timewalking, Timewalking, Timewalking.
-Yes to finishing all Spires and Nagrand Quests, there are some really good pcs if you get them to improve (with a War Mill ofc).
-Treasures/Rares in both Zones (we've confirmed that the War Mill doesn't effect the improvement).
-Daily quest via the Tavern as well as Skyreach runs until you want to stab puppies to see color.
-SoO Mythic 2-4 pc for PvE (if you can get into runs, lucky for you that's not a problem).
-Certain old gear for PvP (only until Legion drops).
-Ferals aren't nearly as OP at 99 as they are at lower levels, Blood DK is quite OP though.