Source: Variety (via comingsoon.net): In a Variety article talking about MGM's move back into the tentpole business, the trade mentions a few highly-anticipated projects that are in the works:

Over the next few years, MGM is planning to release half a dozen films, some in the $150 million to $200 million-plus range. Studio is ready to unveil such high-profile projects as "Terminator 4"; one or two installments of "The Hobbit," which Sloan hopes will be directed by Peter Jackson; and a sequel to "The Thomas Crown Affair" with Pierce Brosnan.

It has already announced a "Pink Panther" sequel and the next 007 pic "Bond 22," due out in November 2008. "Rocky Balboa" unspools in February.

The pics are all franchises that MGM owns the rights to through its 4,000-title library. The goal is to release two or three tentpoles a year, all of which will be made with financial partners, including Wall Street money or other studios.