They should have renamed the 6.0 patch to the Heirloom Patch. I say this because since the patch went live I've done nothing but try and get heirlooms from Garrosh Kills on all my characters. Some I've gotten through groups I've put together and some through awesome people on twitter organizing groups. I've yet to get one through the new group finder because sadly most of my groups fall apart after one wipe or because people think they can overpower mechanics and as we all know...that rarely works. At least I can cry myself to sleep holding the heirlooms I have.
So a lot of heirlooms, a lot of changes to classes, and a Halloween holiday event. Blizzard has definitely provided us with a lot of content in game to keep us busy until the expansion release date which is almost upon us. Throw Blizzcon into the mix and suddenly October has been a very busy month for most of us! With all this activity it's been fun to see people who stopped playing WoW, finally log back on after a long time. They are usually confused at all the changes and are often asking questions in guild as to how to do stuff or what things are.