The new truck was surrounded by a fleet of current Silverados, which went on sale in 2013, making it one of the oldest trucks on the market. The prototype was being offloaded from a carrier, giving the photographer a few moments to get profile photos. The camouflage covers much and aside from the Ford-like lighting and window covers, reveals little.
The truck in the photo appears to be a crew-cab short-bed model. It doesn't look much larger than the current version, but that's no surprise. Modern full-sized pickups are absolute behemoths that can't get much bigger without stepping on the toes of their heavy duty brethren. Like the current model, the wheel wells appear to be relatively squared off and the bumper has steps in the corner. A close-up shot of the interior reveals A-pillars and grab handles that are about the size of tree trunks. From this angle, it's unclear how much this will affect visibility.
Along with the aluminum integration, we expect the Silverado to possess a full suite of active safety features. With the high hood and big A-pillars, expect forward blind-spot and possibly forward-facing cameras. While nothing is confirmed, look for a full reveal of the new Chevrolet Silverado late this year or sometime early in 2018.