And just to squash any rumors, I'm pretty sure there will be no GTD in North America. That is the GTI with TDI 170hp engine. If they were going to certify the 170hp engine for the US, it would require lots of engineering and emissions tests which costs money. And the 2010 Audi A3 TDI isn't getting the 170hp engine either - if they were going to spend all that money they would at least make it optional on the VW or Audi but it's not.
Is it possible for 2011? Maybe, but anything beyond 2010 is pure speculation.