Blizzard just trademarked "The Dark Below" which looks like the expansion to Diablo 3. So far Blizzard hasn't confirmed it, probably saving the announcement for Blizzcon 13. However, it does open room for speculations on the directions Blizzard want to take with this expansion and would it be able to address the issues the die hard fans of Diablo series had with the game.
Later signs of the exapnsion are now seen on the official website. A teaser is shared on the website indicating something to do with Diablo 3
Reaper of Souls
Later signs of the exapnsion are now seen on the official website. A teaser is shared on the website indicating something to do with Diablo 3
Reaper of Souls