The photos of the 2020 RS4 graphically stitch together new bumpers onto the existing bodywork. Or perhaps the artist just added the new headlights and taillights to the older design. If there's a master class for Photoshopping cars, we really should look into it.
In any case, the new lights have a similar design to those of the A6 family, with a cascading wave pattern over the top that activates to greet you or when you use the indicators.
The Germans are unlikely to mess with what's under the hood. It's a 2.9-liter twin-turbo V6 that's found in a variety of other cars, such as the Porsche Panamera S or the global version of the S6 and S7 (Europe gets a diesel). It's a good engine with ample torque, though it will never sound as sweet as the old 4.2-liter V8 from the glory days.
A few years ago, we would have immediately assumed the engine was getting a bit more power. But since the EU is cracking down on emissions, we wouldn't be surprised if it made less. That's what happened to the S3 family a couple of years ago.
Likewise, the six-cylinder unit might receive some assistance from a mild-hybrid system. You see that on the new S4 models which are the only members of the A4 family with a 48-volt electrical system.
