You've probably noticed that Biohazard Games has shared publishing rights for Blue Planet with a number of licensees since it's original publication. Most notably Fantasy Flight Games - v2.0 which was shepherded at FFG by Biohazard's own Greg Benage - and most recently with several companies under the auspices of James Sutton, including RedBrick and FASA. Each has done great things with the game and left their own unique marks on the line. Without them, the game would likely have faded away long ago.
That said, as of this week, Blue Planet is now back home with Biohazard. I can't say what this might mean for the future of the line as we are currently up to our gills with producing Upwind, but it is fun to think about the possibilities.
If you have any gaps in your BP book collection, you can purchase any of the titles in PDF form from DriveThru RPG. And by way of celebration, I will send the first 5 people who send me an email to firstname.lastname@example.org containing the words "Welcome Home Blue Planet" a coupon for a free download of the BP title of their choice. Be sure to include the title of the book you would like to receive.