I have stopped playing World of Warcraft this summer. I highly doubt I will play World of Warcraft again, and definitely not before another expansion.
I have mainly been playing a modified version of Diablo 2 and League of Legends this summer.
Diablo 2 Epic Mod
My mod for diablo 2 makes it more challenging while making quite a few abilities a lot more interesting. Yet the core gameplay of Diablo 2 is still there.
The installation to get it all working is slightly more difficult than just loading Diablo 2, but instructions are on the site and it makes for a much more interesting game.