The enlarged 15-round series announced in October contained two new venues, Miller Motorsports Park in the USA and Portimao in Portugal, plus two unidentified events.
Those events have now been named as the Nurburgring, home of the German F1 Grand Prix, on June 15, and Sentul in Indonesia on October 12. Sentul's presence is 'subject to contract' - as is Monza's.
Some reshuffling of the dates has also seen Vallelunga moved forward one week to September 21, while the Portuguese season finale has been pushed back a week to November 2.
The updated calendar confirms that Silverstone and Lausitz will not return in 2008.
February 23
Qatar Doha/Losail
March 2
Australia Phillip Island
April 6
Spain Valencia
April 27
Netherlands Assen
May 11
Italy Monza**
June 1
United States Salt Lake City*
June15
Germany Nurburgring
June 29
San Marino Misano
July 20
Czech Republic Brno
August 3
Great Britain Brands Hatch
September 7
Europe Donington Park
September 21
Italy Vallelunga
October 5
France Magny-Cours
October 12
Indonesia Sentul**
November 2
Portugal Portimão
* Superbike only.
** Subject to contract.