Reports and rumours of its coming have been circulating almost since the current A4 appeared, but so far, Audi has yet to offer a single word one way or the other.
This week however, reports from Europe point to a leaked document obtained from Audi's Swiss importer, Amag, which lists the RS 4 Avant wagon among the models Audi will display at next month's Geneva Motor Show.
The previous-generation RS 4 extracted 310kW from its 4.2 litre V8, rushing to 100km/h in 4.8 seconds.
It has also been speculated that the new RS 4 would switch to the same V6 engine driving the S4, boosting power (well) beyond its current 245kW.
A more powerful version of the already range-toping TT RS coupe is also reported to be Geneva-bound, squeezing an extra 15kW from its turbocharged 2.5 litre five-cylinder to make for 265kW.