Merecedes-Benz have not only revealed the 2014 S-class but also been testing the two door variant. This is to be a S-Class Coupe Moniker in replacement of the CL-Class.
The S-Class has already been revealed which means that the two door version is unlikely to bring any surprised. However, there is some swirly paper on the test model that was seen and it will be interesting to see what is underneath that. It does look like it could possibly be a remodelled version of the Sedan up front. On the back there is not a vertical rear lighting system like the four door has but it seems to have slim units that are horizontal.
The S-class Sedan will be launched in the S63 and S550 AMG and they may also make their way to the coupe. When the two door gets revealed officially more information will be known of course. This could be at Frankfurt and so there may not be too long to wait for it.