A bunch of new sites from Burkina Faso and Micronesia:
Burkina Faso
http://whc.unesco.org/en/tentativelists/state=bf- Cour royale de Tiébélé (18/12/2011)
- Les sites de métallurgie ancienne de réduction du fer dans les espaces boose et bwi (Ronguin, Tiwega, Yamane, Kindbo, Bekuy, Douroula) (18/12/2011)
- La réserve de Biosphère de la Mare aux Hippopotames de Bala (18/12/2011)
- Le complexe Parcs nationaux Arly-W (18/12/2011)
- Les gravures rupestres du Sahel burkinabè : Pobé-Mengao, Arbinda et Markoye (18/12/2011)
Micronesia
http://whc.unesco.org/en/tentativelists/state=fm- Ceremonial Centres of the Early Micronesian States: Nan Madol and Lelu (03/01/2012)
Nan Madol would be a great addition to the WH list in my opinion - it's one of the most important archaeological sites of the Pacific islands.