Apparently, it's the last season for Amy and Rory :cry Doctor Who: Amy Pond's Farewell Announced - TV News at IGN
While I will miss looking at Karen :love, I do think they've worn out their welcome. Time to move on. Thankfully Moffat thinks so too.
Really? Few people really care about Rory. It's all the Legs that we're interested in. As much as she pushes him around, he might as well change his name anyway.