I'm holding out for a Ceramic Luminor and I do hope that the come out with one next year. There are news that it will not be possible to have a Ceramic Luminor as they say the lugs stick out too much on the Luminor case design and they are afraid that these will crack and break off. They say that ceramic is more brittle and the lugs are the weak point.
I wasn't sure that the Ceramic Rad was for me. When I got the chance to try one on at Tempus, I think I will hold out and wait if they will be a Ceramic Luminor. (fingers crossed!)