In the next few years Cadillac is likely to adjust its product mix toward somewhat smaller vehicles, which may be at least in part driven by the need for increased fuel economy. In an interview with Automotive News, GM North America President Troy Clarke indicated that the two larger Cadillac sedans, the DTS and STS, will likely be replaced by a single model in the future.
In addition, a model smaller than the CTS is likely to appear, which could come off the rumored Alpha platform. In spite of cutting one model line, Cadillac's lineup will probably grow with additional variants such as coupes and convertibles, including the CTS coupe that has been spied.
[Source: Automotive News - sub. req'd]