Three Lego sets for The Hobbit: The Desolation of Smaug have been leaked on e-Bay Germany.
According to observationdeck.io9 the three sets are Mirkwood Elf Army, Battle of Dol Guldur and Dol Guldur Ambush,
The Mirkwood Elf Army set is a mid-sized set and includes figures of Thranduil, orcs, elves and a warg.
The Battle of Dol Guldur is the largest of the sets. Gandalf and Radagast are there amongst Azog and some orcs and the Necromancer.
The smallest of the three sets is the Dol Guldur Ambush, which is an add-on to The Battle of Dol Guldur set. This set includes the mini-figure of Beorn as well as orcs.
A fourth set, The Lake Town Chase, was unveiled at San Diego comic Con earlier this year.
Pictures are via brickipedia where more images can be found for Dol Guldur Ambush , The Battle of Dol Guldur and The Mirkwood Elf Army