Yes. And, it's ready to go. Shame VW didn't put it in the recently released Golf GTD.
The RS6, you're right. Audi's school report should definitely read: must try harder with its engines. Given the considerable resources Audi has at its disposal in the engine department (many of whom were poached from BMW), we should start to see some interesting developments.
Super-powerful yet efficient V6s should be at the top of the list, followed by a similar V8. I think work is being done on 3-cylinder engines as well.