A quick rendering of a possible successor of the Chevrolet Express. The idea behind this rendering, was that the European Vans are coming to the states to succeed the older American Vans for example the Dodge Ram van and the new Ford Transit.
The smaller Chevrolet City Express is based on the Nissan NV200 van, so this new Express is also based on the Nissan NV400. That van is based on the Opel/Vauxhall Movano, which is a GM brand. This means that the technology is already used by their other brand.
This all together could mean there is a big possibility for a Nissan/Renault/Opel based Chevrolet Express.