Not sure if this has been published elsewhere:
According to my regular LEGO dealer the Indy theme will be disbanded by the end of 2010. It will be replaced by Prince of Persia which will be out in June...
Harry Potter will be reintroduced with 6 sets including a Hogwarts Castle. To be released before Christmas (New movie is out in November).
New Castle series: Kingdoms. 7 sets from June. Advent calender in October.
New Bionicle sets in January - Out of production again in May.
March: Ben 10 Alien Force
August: Hero Factory.
New Racers sets from June.
Bags of selected Minifigs sold independently from June.
Toy Story from March.
New Technic mobile crane and Remote controlled digger.
Belville: Continue unchanged.
Star Wars 7675 and 7676 will be out of production from May.
New Space Police sets from June including a Space Police Station.
Power Miners sets already out.
Atlantis: Some out now. The rest will follow in January and August.
6243 Brickbeards Ship to be disbanded in May.
City Airport in March.
2 new train sets in August - includes flex tracks(!).
The new Creator House will be out in January.