I leaved wow in early december (2012), around 4 months ago.
Im thinking to return, but my server sucks, low alliance ratio compared to horde, full of childs, facerollers and cryers.
If i come back, i plan to play in casual mode until i have a bit more time. A top hardcore guild requires a time that i havnt got it at the moment, and i've decided to migrate to Silvermoon-EU (PvE) from my actual realm (Sanguino-Spanish, PvP), because is the biggest alliance population in wow, so i supose that ever will be people doing something and also i can enhance my english.
How is Silvermoon? is a good option?