2007-2012 Patriots all take the exact same window visors. Nothing on the door/window frame area has changed. I have a 2011 and am running AVS exterior mount ones using the part # listed for 2009. Most aftermarket companies take forever to update their application guides which is why you probably are only finding 2007-2010 model listings.
The Weathertech kit you are talking about( #72444 )is the same one for all model year Patriot's. As said above they are too $$$ though, IMOA, at $100. You can get a 4 piece AVS set( in channel or exterior mount )for about $70. My 4 piece AVS exterior mount set was $59( bought last fall ).