That's the second half of Season 4. The first half was screened earlier this year but after that the show had to take a long hiatus due to the Writers' Strike. These upcoming 10 episodes will continue the storyline i.e. the arrival of the ragtag fleet and their newfound Cylon allies on what they believed to be Earth.
In a recent interview, Edward James Olmos who plays Admiral Adama has said that these 10 episodes will be devastating to the main characters which kinda points to a bleak ending to BSG rather than a happy one. I just say bring it on... BSG is the best sci-fi on TV at the moment... period.