Remember, it is one in or out per UY. So, if you got 2011 UY points, you can possibly still get 2012 UY points that would be valid for time of travel.
For example, if you were traveling in July 2012, you could get say, Oct 2011 UY points and then June 2012 UY points transferred in. Both would be good for that one trip and would be allowed as it would be considered your one and only 2011 and 2012 UY transfer.