This is the tentative list published in the Avalon Hill axis & allies forum:
WAR AT SEA: TASK FORCE. Due out July 29, 2008!
The original thread can be found here
Updated through 2/29/08
COMMONWEALTH NATIONS
UK Units
HMS Kent (reprint of Canberra, will have higher Armor value)
HMS Warspite (new BB sculpt)
HMS Fencer (St. Lo reprint)
Canadian Units
HMCS Haida (G63) (new DD sculpt)
Australian Units
HMAS Arunta (Haida sculpt)
US UNITS
USS San Francisco (new CA sculpt)
Iowa sister ship (most likely Missouri)
F6F Hellcat (we can only assume it's a new sculpt)
USS Yorktown (New Essex-class sculpt or Enterprise reprint)
DUTCH UNITS
De Ruyter (new CL sculpt)
GERMAN UNITS
Tirpitz (Bismarck reprint)
Graf Zeppelin (new CV sculpt, will permit Ju-87's to ignore their Land-Based trait)
Me-109T (new sculpt, or will they just use the Spitfire?, hehehe)
German Hipper-class (new CA sculpt)
ITALIAN UNITS
Italian cruiser Zara (new sculpt)
SM.79 Italian Level Bomber (new sculpt)
JAPANESE UNITS
Akizuki-class (new DD sculpt)
Kongo sister ship (reprint)
Yamashiro (new sculpt)