If you really want that color find a dealer that you might want to work with, let them know you are serious and keep hounding them as to when / if the color is available. If they don't get back to you find a different dealer who is working with you to get you into the car you want.
PCP for 2010 was 'late availability' available starting in March. My car was born early April.
As Mike stated it is usually March or April... used to be called a "mid-year" release back in the day. Many refer to the 2014 Shakers as 2014&1/2 because the order banks did not open up until March of that year.