'Lord Sargeras, sweep your molten fist through this world, so that it may be reborn in flames and darkness!'
'So the light's vaunted justice has finally arrived.'
'Boldly said. But I remain...unconvinced.' My Warrior
I am pretty sure a blue said after the first season they will most likely bring back all that gear so you can purchase. Right now all the old stuff ( I dont think level 85) gear is being sold in area 52 in BC area.
I'm pretty sure (Not 100% though) that Blizzard mentioned that these will be put back into the game at some point, like the older sets. They will probably be moved to Area 52 as well I'm guessing, but who knows