I have to add my $.02. When I fisrt saw Blackberry Pearl (it was on a Compass) I did not like it at all. I now own a 2011 Overland in BBP and love the color. A Summit could look very nice in BBP. (BTW - my int. is frost)
I doubt they will change much, if at all. There is a pretty good selection of colors already available you will probably see a few drop off and a few added in '13 or '14 At least thats how chrysler usually does it.