GS11 - new ski
GS9 - Race 9.20 with slight modifications.
SL11 - new ski
SL9 - Race 9.12 with slight modifications.
SX11 - new ski
R8 - new ski.
R9 - reworked Ride 9.22
R10 - repainted Ride 10.20
R11 - repainted Ride 11.20
R.EX - repainted 10.ex
Sugar Daddy - no change
Big Daddy - no change
Tweak - FreeZone Rodeo with slight changes to tip
Stomp - no change
C9 - Carv 9.18 with texalium 100
C11 - Carv 11.16 with new base
E9 - new ski. Smartzone PC with Texalium 100
E7 - slightly wider Smartzone PC
E5 - slightly wider Smartzone
Thats the basic list. Your local Atomic retailer should have some models available allready (if they haven't sold out). They should also have a copy of the catalog so you can read the specifics on each model.
The C11.16 have a new base with ceramic inserts, I did not like this ski because of it´s stiff forski, on the other hand the SX11 = SUPERCROSS B4 construction is a really nice ski (green) I tried the SX11 in 180 yesterday and it is like the GS11 in 181 just softer and floats easier. Turnradius = 18 m sidecut 107-66-something