Those nice Netflix people have added the final season of Dexter (season 8) and the first three of The Good Wife. Also Vampire Diaries s.4 and Warehouse 13 s.4, plus there's the rather wonderful first season of the cartoon Adventure Time for those young at heart.
And if you're wondering why Sky Movies still hasn't shown the first Hobbit film - it doesn't appear to have the rights. Netflix has the streaming rights to all three Hobbit films in a deal secured back in 2011. Sky Movies normally shows films a year or so after they're in the cinema, although recently the likes of Iron Man 3 and Skyfall appeared after just six months. They may still show the Hobbit (it was on Sky Box Office / Virgin Movies VOD I think) but it's been on Netflix since August and still isn't listed in the upcoming movies on Sky Movies Premiere yet.
Incidentally, here's an interesting list that's appeared on IMDB that highlights many of the top movies on Netflix UK http://www.imdb.com/list/Mz4se1ZIEmY/. Hopefully the author can keep it up to date - good work fella!