Re: Players calling time this year
Kveta Peschke confirmed at the end of 2011 that this is going to be her last year on the tour. She's definitely retiring.
Baltacha is probably done too. Her emotional reaction after losing at the Olympics probably confirmed that she isn't going to be coming back even after her injury is recovered.
My crystal ball sucks. Peschke reversed her decision, and now plans to play on in 2013.