The Ford Mustang 5.0 has been gone for some time, but with the new 32-valve, 5.0-liter "Coyote" V8 on its way, the badge could make a comeback and undoubtedly it'll be more successful than Vanilla Ice's past attempts.
After some digging through Ford's parts database, a forum member at TheMustangSource came across a "5.0" badge and an accompanying part number that could find itself attached to the 2011 Ford Mustang. Supposedly, KC also found listings for three new engine/transmission combos for 2011: the 3.7-liter V6 reported earlier (with both auto and manual gearboxes), a 5.0-liter (with the same transmission options) and a supercharged 5.4-liter. Although we're treating this with a healthy bit of skepticism, it doesn't seem beyond the pale, and if Van Winkle plays his cards right, maybe Ford will tap him for the marketing campaign. Thanks for the tip Matt!