You may not be aware that Ford runs it's own blog covering auto shows and concepts:
Lots of topics are under discussion - and you can add your comments without registering. One of the more lengthy "conversations" concerns the Interceptor concept.

Follow along here. Note that you can subscribe via RSS to the comments of this or any particular thread:
The Interceptor is one of the more promising concepts built recently by Ford... a 5 liter DOHC aluminum V-8, a short/long-arm front suspension, and the infamous "missing" IRS that was supposed to be offering as part of the canceled SVT Cobra (which is not what was delivered as the "Shelby GT500").
Of course none of these features will show up in production in exactly this form: we know that this car can't be built on a Mustang S197 platform (which is dated and due for phase out in a couple of years anyway), we know we won't ever get a 5-liter "modular" engine into production because it's can't meet production durability standards, and we know that somewhere there is a new RWD platform being developed in Australia for production sometime after 2012 or so that would be intended as a global platform and would have to be used. So the Interceptor is nothing more than a concept, an idea of what could be several years out.
So enjoy the "idea" of an Interceptor... and keep your fingers crossed that in another 5 or 6 years something like this might appear.