Could we possibly get a mode that would allow us to re-experience prior content at its near-original difficulty before it is all made obsolete by 3.0?

I would very much like to re-explore certain fights that gear has since made disappointingly easy without having to spend incredible amounts of time and inventory space to find full sets of i70, i75, i80... i90... and so forth to match the minimum (or near thereto) ilvl of the instance, especially given that the ilvl-sync function is already in place in the game. I particularly like what it can do for new players, as not to be automatically made carries by nature of their in-progress (can also read: appropriate or near-fitting level) gear.