Right now, the only person I'd trust to be able to realize a project like that would be Ron Thornton, who already worked on the Scarlet CG version. Since he's the founder of Foundation Imaging, the company that paved the way for extensive use of CGI in TV shows (e.g., unimportant shows like Babylon 5 and Star Trek Voyager) he knows a thing or three about CG-heavy projects.Read at one point he was trying to bring Thunderbirds back to tv via cgi as was done a few years back with Captain Scarlet but I guess that will never happen.
But he does his best work when he's teamed up with other great creative minds and every generation of filmmakers has only a handful of visionaries as gifted as Gerry Anderson.