Bashiok has posted about end game solutions on the official forums. Looks like we will be seeing changes to end game in upcoming patches, as well as PVP in 1.1. Below is the full post.
Blizzard blue tracker: July 4, 2012.
We recognize that the item hunt is just not enough for a long-term sustainable end-game. There are still tons of people playing every day and week, and playing a lot, but eventually they're going to run out of stuff to do (if they haven't already). Killing enemies and finding...