UPDATE: High-res photos of LEGO Atlantis sets are now out.
Alexander (Shurik) posted pictures of some of the 2010 sets that LEGO has displayed at a sponsored event in Russia called Festival Rossiyskogo Fan Forum Lego. The featured sets include samples from the following themes: Atlantis, Toy Story, Prince of Persia, Star Wars, Power Miners, City, Bionicle and more.
EDIT (TG): These pictures were uploaded due to a miscommunication and have been removed from Flickr at the request of TLG. The local Ambassador, Igor Makarov, asked me to remove the deeplink which I have done.
UPDATE: Target.com also has box art for one of the 2010 LEGO Power Miners sets, 8188 Fire Blaster: