FYI
Preliminary patch notes of v.6.6 update planned for release after v.6.5 (edited according to latest info):
New map Fishing Bay (working title, subject to change)
New map Siegfried Line (working title, subject to change)
New German heavy tanks line: Pz.VI Tiger (P), VK 4502 (P) Ausf A, ?-75, ?-100.
New US heavy tank ?103, a substitution to ?34 as tier 9 US heavy tank.
Soviet heavy tank IS-4 shift to tier 10 and introduction of Object 252 as new tier 9 Soviet heavy tank.
The introduction of German medium tank ?-50
As found on WoT forums
Preliminary patch notes of v.6.6 update planned for release after v.6.5 (edited according to latest info):
New map Fishing Bay (working title, subject to change)
New map Siegfried Line (working title, subject to change)
New German heavy tanks line: Pz.VI Tiger (P), VK 4502 (P) Ausf A, ?-75, ?-100.
New US heavy tank ?103, a substitution to ?34 as tier 9 US heavy tank.
Soviet heavy tank IS-4 shift to tier 10 and introduction of Object 252 as new tier 9 Soviet heavy tank.
The introduction of German medium tank ?-50
As found on WoT forums