What I would like it to be is an option to LFR or LFD old dungeons/raids with old scaling gear, that scales to the current LFR item level or somewhat worse.
I wonder how fast the theorycrafters will find out those old forgotten hidden scaled gems!
For example on vanilla there used to be a godly warrior trinket from brd that gave you an extra attack. Would that trinket scaled be good enough to have any use on current content?
Or one of the most wanted items back in TBC was a trinket from gruul. How would that trinket scaled cope on current content?
Whatever it is, I'd say expect it in 5.3 or 5.4 in an effort to pull back subs.
If you truly believe that, Blizzard, show me you mean it. Because WoD didn't show me.As long as players are happy and enjoy the game, the team doesn't mind extreme peaks and valleys. They just want to ensure you have a great experience and feel like you got your money's worth.
Your idea could also incoporate a heirloom panel where once you get a heirloom you can see it in an heirloom wardrobe that is accessible by all your characters. No more sending by mail etc. would be great actually.
Anyways nice thinking, let's see what happens!