When the Audi R8 V10 finally ends production, as has been confirmed multiple times, an Audi e-tron GT coupe is going to replace it.
CarScoops managed to grab a quick series of videos with the GT sedan winter testing, alongside a few other Audi and VW group test vehicles.
As far as reports go, the e-tron GT sedan will be using the same basic platform that the Porsche Taycan was built on, the Porsche J1 performance platform. With the Taycan having three model levels, it would be safe to assume that the GT sedan would also have multiple power level variants.
The base model has been mentioned by Audi as having the equivalent of 582 HP, which would put it squarely between a Taycan 4S (522 HP equivalent) and a Taycan Turbo (616 HP equivalent). This would suggest that a GT-S or GT-RS model could come along with power near the Taycan Turbo S, which has 750 HP equivalent when put into full sport mode.
Of course, being Audi, the e-tron GT sedan will for sure have all wheel drive. This base model will more than likely have two electric motors, one for each axle, with suggestions that the higher spec model might go with a three motor layout, one for the rear axle, and one for each front wheel.
Only time will tell, however, as these cars are still being developed.