Sadly enough, it look like Audi wend the easy cheap way with the new TT RS.
There are a lot of cheap solutions on the car.
Like a complete standard/basic TT body shell with S-Line / TT-S bumpers on it.
It also look like the only differences with those bumper will be the insert front grills and rear diffuser .
Side skirts are also standard S-Line / TT-S versions.
It look like it will be a very bleak TT RS, it could look as simple as this.