A Mercedes-Benz enthusiast site from Germany reports Stuttgart should be opening the order books for the next-generation C-Class Coupe in September of 2015, more than a year after the reveal of the sedan.
The new C-Class Coupe is supposedly internally referred to as the C205 and is expected to premiere at the 2015 Frankfurt Auto Show. Deliveries should follow sometime in December of 2015.
Much like the sedan, the C-Class Coupe should receive the same engines as the sedan and a convertible may follow in 2016 to make sure Mercedes stays competitive with the BMW 4-Series.
Source: Mercedes-Benz Passion Blog