I guess it's early days for the blog but it was a bad oversight on my part. TORn got there first with the juicy rumour that Viggo Mortensen was spotted in New Zealand - I can confirm that, as at least one of my spies spoke to him directly.
Apparently he was here working on The Hobbit, and preparing for a small cameo in the second movie when he needs to reprise his role as a dunedain ranger, guarding the Shire against passing baddies.
Two things strike me about that - (1) Viggo is already back and actively working on it, which means they must be getting close to finishing the scripts, and (2) they're working on both movies at the same time, just like they did in LOTR. Fantastic news in any case.
What we can also take away from that is the fact that they're happily re-inserting characters that didn't get a (specific) mention in the Tolkien's "The Hobbit" book, which means that the chances of (for instance) Gimli and Legolas re-appearing are also now significantly higher.
I'm speculating we won't see Sam, Pippin or Merry in The Hobbit, but Frodo might make an appearance late in movie 2 - the others get introduced specifically in FOTR, but Frodo seems to be quite familiar already at the start of that movie.
The other scene that we need to see Aragorn perform is the first meeting with Arwen, which according to Viggo himself in an interview last year ((references?)) has already been filmed.