The Lexus Dealership I buy from (Park Place Plano) is about a mile from Toyota HQ and my sales rep and service manager believe so. May be a toned down version but Lexus has an initiative to make the F and F sport lineup more competitive than it has been. Starting with the ES having an F Sport model.
I brought up the Lexus vehicles because I still dont understand why Toyota didn't just use the LC engine or the LS TTv6 engine that the new IS will get.