The C7 RS6 Avant is coming to the US! This was confirmed to me by an Audi rep on the Audi online chat feature. Well sort of confirmed....

I asked about the RS4 seeing as it's the most likely candidate with the combination of Allroad body and RS5 drivetrain. She said there is no word on bring it here. Then I asked about the RS6 and she said 'it's not available here YET, but the RS7 just went on sale'.

I know this isn't exactly conclusive. But I am guessing MB's aggressive move to take Audi RS customers with the E wagon and the continued bitching of most all on this website as well as all automotive journalists may actually be making an impact! I bet within the next year we see an RS6 press car running around headquarters.