Still no release news on these, but someone did tell me that "next Month in
American Cinematographer Post Focus will present a comprehensive look at the recent 4K restorations of all three Godfather films by renowned film preservationist Robert Harris and a team of experts, who received valuable input from Allen Daviau, ASC and the trilogy's director of photography, Gordon Willis, ASC."
What's encouraging is that Paramount seems to (finally) be working on an "OFFCIAL" [sic.] Official Godfather site at
http://www.thegodfather.com/ ("Coming Early Summer '08")