I want something on par with the difficulty levels of TBC heroics. The whole point of heroic mode is that it's supposed to be challenging. Even when we didn't severely out gear these instances they weren't up to the standard.
The average tard shouldn't be farming heroics. I want it to take some level (however small) of coordination to complete these "heroic mode" dungeons. Crap like loken's mechanic getting nerfed should never happen. Don't let the people that lick windows walk in and do hard mode anything. When you zone in there should be some kind of excitement and wondering about whether this team has what it takes to complete the instance or are they a bunch of sausage fingered inept mouth breathers.
The possibility of failure is what keeps it fresh longer.
However I don't expect to see anything different than what we've gotten recently. So feel free to invite your grandmother to dual box some H farm sessions in cata.