There are preview brochures at the Ford Fleet web site. For the 2016 Flex:
http://www.fleet.ford.com/resources/ford/general/pdf/brochures/2016/2016+Flex.pdf
If I read it right, the big change is Sync 3 (hardware and software), and for colors, delete Tuxedo Black, Deep Impact Blue, Guard; add Shadow Black, Kona Blue, Too Good to be Blue.