Don't know. Usually neo-pro contracts are longer than that, they kind of have to be, but he could be leaving by mutual; as Ferminal says, as soon as that is presented as rumour the immediate thought is "Movistar have bid for him". We know Unzué loves the guy. He was in talks with them for this year, but sponsor requests for South American presence made them stall on offering him a contract and Radioshack came in and took the opportunity. While we were expecting the Shack to fold at the end of the year we all expected Kwiatkowski to resurface at Movistar in 2012 anyway, so it's not surprising that they might be the first name that surfaces as soon as any rumour about him moving teams is started.
I haven't heard anything about him moving teams fwiw, but if he does then Movistar is the most likely destination by far.