No, it's not welfare epics. They aren't even like welfare, but I've already gone over this. It's not guild banks or 10-man raids.
It is the hybrids. We have seized the means of production and can finally be free of the bourgeois pure classes. We are all equal DPS. Somewhat.
Lolret will be over. "We need CC" is a thing of the past.
TBC was the end of serfdom and slavery, the end of healing. WotLK is the end of the capitalists, the end of the pure DPS.
Coincidentally, just as we reach the end of history, we are also closing in on what will most likely be the last expansion.