I disagree. VW has already cut down production types for their various amounts of cars. There was an article of this in a previous thread. I don't think it will be much profitable to Volkswagen if they make a model in between a GTI and a R32. If you want AWD, just grab the R32. Just think of it this way, the Golf ( rabbit ) is an A3. The GTI is an S3. The R32 is a R3 ( which i dont know.. doesnt exist ). Remember that Volkswagen is a people's car. Some or alot attract the young. I'm sure Volkswagen doesn't want people to run around in higher powered engines than they should be. The Audi is a step up.. for some reason I think thats why it gives them the power to do so. The Audi is created for older people who somewhat can keep their power undercontrol. Now in terms of gas milege, if you turn a GTI into an AWD, 260horse + car.. I believe the fuel is going to go down and into the R32 Range. If you want something more powerful than a GTI or R32... go look into another manufacterer or S4.
My two cents.
P.S. I could go on and clarify what i just said above and actually try and make it make sense... but its late, and were all tired. So, therefore i tried to summarize what my brain was creating.