Specialites TA is now making Campagnolo compatible chainrings for the new 11 speed cranks. Nerius 11 for the CT (110) crankset and Horus 11 for the ST (135) crankset. Available sizes: Inner 34, 36, 38, 39, 42 T – Outer 48, 53 T. You can now customize your gearing or change your 10 speed Campagnolo crank to 11.
A few British web stores are listing them. In the US, Peter White is usually your go to guy for TA products but judging from the comments on his web site about 11 speed I don’t think he will be carrying them any time soon.