Ian McKellen stated that he'd love to be Gandalf again, and that Peter Jackson had let him know that he had to do it, even though Jackson might not be involved. "If I am still functioning and working well, it is very likely I would be asked to do it. I am glad to read that it is looking more and more likely. I would be disappointed if they didn't want to have the original Gandalf."
Andy Serkis is also keen to reprise his role as Gollum. "I would love to be involved with it because Gollum in the Hobbit - there's great scenes in that with the riddles in the dark passages, is one of my favourite - that I remember from being a child - one of my favourite books and that scene really - I remember it very strongly. So I'd love to be involved with it. I'm not sure whether it's going to happen or not but if it ever did, yeah, that would be great."
Ian Holm is 76.
Sad to say, all, but I'm much more excited about a Hobbit* movie than I was about LOTR.
*Pansy Deepdelver of Brockenborings.