In a recent update, Ancestry.com has updated the number of Regions that your DNA can be identified as being associated to.  This is additional to their previous regions, and further refines locations where your DNA suggests you should research further.  The new regions added are:

8 new regions in Africa:
Benin & Togo
Yorubaland
Central West Africa
Central Nigeria
North-Central Nigeria
Nigeria
Western Bantu Peoples
Twa

5 new regions in Europe:
Cornwall
Russia
Iceland
Denmark
The Netherlands

3 new regions in West Asia:
Lower Central Asia
Northern Iraq & Northern Iran
Sephardic Jews

8 new regions in South and Southeast Asia:
Southern India
Southwest India
The Deccan & the Gulf of Mannar
Gujarat
Gulf of Khambhat
Western Himalayas & the Hindu Kush
Luzon
Western Visayas

In addition to these Regions, Ancestry has also identified 54 new Subregions in Europe, to further refine where your ancestors lived or traveled.  They have also added 64 Ethnic Groups throughout Africa for those with ancestors on that continent.

See the update video: