If the top of the tree is the same as the one announced on the ASIA server (which it usually is), the British FV217 Badger and the American M48A5 Patton will be the tanks for November and December.
November 5 to December 5: FV217 Badger
November 20 to December 20: M48A5 Patton
Shame its not one of the remaining 8 tier 10s I have unlocked. Then again more money to buy the upcoming Italian heavies.