I hear it'll be built on the Lincoln LS platform with the T-bird and the possible Ford 49, or whatever they'll call it. The current platform is that same Fox one from '79, and they want a newer platform. Any bigger motors possible? I agree that anything is possible in terms of output from that 3.9L V8. They oughta toss a blower on there, like the Lightning. That'd get 'em 300 ponies easy - alone with few mods I believe.
1985 Bronco XLT, 351, 4bbl, C-6, Ford 9"rear
1982 Lincoln Mark VI, 302, EFI