A6 L e-Tron and Q7 e-Tron is coming but only in China and some region in Asia. Compare to Europe, the usage of diesel among cars is not popular among the owners. Instead of bringing variant models with diesel engine, Audi take the initiative to bring the e-Tron models to some Asia region.
The Audi A6 L (longer wheel based) which were built in China will have plug-in hybrid version. Under the hood, there is 211 horsepower 2.0 Liter turbocharged engine with a 122 horsepower electric motor. Its power will be transmit to a 8-Speed tiptronic. Audi said, with high power outlet, it can be fully charged in 2 hours but on household outlet it takes more than 8 hours. The Audi A6 L only available in China region.
On the other hand, if you like and SUV instead of car, they also have an Audi Q7 e-Tron quattro. It is the first time Audi have combined hybrid and quattro drive system. It will be powered by 2.0 Liter 4-cylinder turbocharged engine with electric motor which have a total of 362 horsepower. The Q7 will be available in China, Japan and Singapore by 2016.