This had me confused for a minute since it is, in fact, a proposed extension of the existing Hungarian Hollókő listing.

New tentative nomination from France.

Nîmes, l'Antiquité au présent (2012)

One has been removed too, but I cannot find out which one...

So there's a mismatch now between my count (1537) and Unesco's (1536)

I thought it may have been Les villes antiques de la Narbonnaise et leur territoire : Nîmes, Arles, Glanum, aqueducs, via Domitia as Nimes was added, but no it seems that Nimes is on the French list twice now.

Will have a search for what the other one is.

Missing site from Syria. This makes the tentative list total at 1538! Two over what Unesco has listed.

Mari & Europos-Dura sites of Euphrates Valley (23/06/2011)

Spain has deleted one of their extensions.

Renaissance and Baroque Arch in the City of Granada (extension of Granada)

Estonia has deleted one of their nominations.

Soomaa National Park

thanks for finding it out!

Tuekey just added 12 new nominations.

Aizanoi Antique City (2012)
Historic city of Ani (2012)
Archeological site of Zeugma (2012)
Gordion (2012)
Historic town of Birgi (2012)
Mausoleum and Sacred area of Hecatomnus (2012)
Medieval city of Beçin (2012)
Historical Monuments of Niğde (2012)
Yesemek Quarry and Sculpture Workshop (2012)
Odunpazari Historical Urban Site (2012)
Mamure Castle (2012)
Haci Bektas Veli Complex (2012)

A further Ethiopian site has appeared:

- Holqa Sof Omar: Natural and Cultural Heritage (Sof Omar: Caves of Mystery) (14/12/2011)

Some more Palestinian sites (in addition to Bethlehem):

Ancient Jericho: Tell es-Sultan (04/02/2012)
Anthedon Harbour (02/04/2012)
El-Bariyah: wilderness with monasteries (04/02/2012)
Mount Gerizim and the Samaritans (02/04/2012)
Old town of Hebron al-Khalil & its environs (04/02/2012)
Old Town of Nablus and its environs (02/04/2012)
QUMRAN: Caves and Monastery of the Dead Sea Scrolls (02/04/2012)
Sebastia (02/04/2012)
Tell Umm Amer (02/04/2012)
Umm Al-Rihan forest (02/04/2012)
Wadi Gaza Coastal Wetlands (02/04/2012)

A new Italian site: Modern architecture and urban planning of the Olivetti factory

Ivrea, industrial city of the 20th century (03/05/2012)

Guatemala added 3 new sites

Tak'alik Ab'aj National Park (27/04/2012)
The Caves of Naj Tunich (27/04/2012)
The Painted Murals of San Bartolo (27/04/2012)

India

Delhi - A Heritage City (22/05/2012)
The Victorian & Art Deco Ensemble of Mumbai (22/05/2012)

Sierra Leone

Bunce Island (01/06/2012)

One more from Palestine

Jerusalem Southern Terraced Landscape (as a pilot site of the serial nomination "Palestine: Land of olives and vines") (25/05/2012)

Saint Vincent and the Grenadines (First Tentative List)

Rock Art of St. Vincent and the Grenadines (18/06/2012)
The La Soufrière National Park (18/06/2012)