I heard there are already several prototypes for this. I think they're keeping the stock exhaust manifold and adjusting the fitting at the end to mount an aftermarket turbo.
The question I ask is, how much power is usable on a FWD car? If one was going to do a turbo swap to make big power (by big I mean like over ko4 power for us mk6 guys) why not just buy the R instead? AWD is always going to be easier to handle IMO.