So here's something I ran in to on the WoW forums. http://ptr.wowdb.com/items?filter-build=23478
Class specific, battle.net account bound tokens for legendaries that can be identified as a legendary fitting your loot specialization.

Not sure how much sense they make for the average player, especially being class specific, but this could prove quite interesting for us. Someone even pointed out that with the bad luck prevention and catch up mechanics, these might mean that farming legendaries for your main(s) with fresh alts might be a reasonable course of action. Of course since it's datamined, whether or not it's something that will ever see the light of day, and in what form is still up for debate.

In any case, it's interesting and under the right circumstances could end up being absolutely broken.