Sage Hobbit movie advice for PJ?

[Elladan and Elrohir]

I'm going to go out on a limb and make the prediction that PJ will make The Hobbit after Lovely Bones. Sure, there's still the whole distribution issue to be cleared up, but it will be cleared up. You're talking multi-million dollars here. New Line will not be going out on a limb like they were with Lord of the Rings. This is absolutely certain to be a blockbuster hit, and unless Jackson's moviemaking skills take a huge dive, one of the best movies of the year. The distribution issue will be cleared up, mark my word.

Beyond the four principals from LOTR returning (Holm, McKellen, Weaving, Serkis), are there any other actors/tresses that should return? I know we'll say Bloom, but he wouldn't be significant to the story unless significant changes were made. Who else, and who should they play? Should Liv Tyler make a cameo appearance? And where should PJ's cameo be?

Another question. I believe, and others here agree, that Ian Holm should reprise the role of Bilbo. BUT, whether you agree or not, do you think Mr. Holm has a legitimate shot at the title role? I want you guys' input.