UPDATE: The 2014 Mercedes-Benz E Class has been revealed. Click here for all the details.

Mercedes-Benz will introduce its facelifted E Class range at the 2013 Detroit Auto Show in January, where we will get to see the latest evolution of the automaker's design language spearheaded by current design boss Gordon Wagener.

Instead of the angular look of the current model, look for softer and more rounded surfaces. At the same time, designers will be injecting some sportiness to the range as it seeks younger buyers.

During a recent interview, Wagener explained that “design is the visual language of the brand” and for Mercedes-Benz this meant sporty yet beautiful and elegant lines. AMG models, meanwhile, are about to get a lot more aggressive.

This new video gives us a glimpse at the facelifted E Class’ headlight design, confirming that the current model’s dual-unit design will merge into single unit for each of the headlights. As a link to the past, the new headlight will feature a twin set of ‘eyebrow’ daytime running lights, giving the effect of a dual-unit look.

We’re also expecting the ‘pontoon’ indentation in the rear renders to be replaced by a sweeping character line, while the bumpers and wheel patterns will also be new for this model.

The cabin, too, should be getting a major makeover, with finer wood elements, plusher leathers and brushed aluminum and carbon fiber on sportier variants. A more advanced interface may also be introduced.

As for the engine lineup, expect the current V-6 and V-8 engines to carry over with only minimal changes. The E550 model should get a 435-horsepower version of the current twin-turbocharged 4.6-liter V-8, while the E350 should get a 333-horsepower version of the current 3.5-liter V-6. The E63 AMG's 5.5-liter V-8 is expected to remain unchanged, as should the powerplant in the recently introduced E400 Hybrid.

The new E Class range, which comes in for the 2014 model year, should be available for sale shortly after its Detroit debut. While you wait for its arrival, check out these spy shots of the wagon, coupe, convertible and high-performance AMG variant.