Source: VK Wotleaks community

New tier 5 KV-1S. It won’t have the D-25 anymore, only a HE howitzer (like the KV-1). Characteristics:

Top gun: 85mm S-31

Penetration: 119

Damage: 160

DPM: 2002

Reload time: 4,795 seconds

Accuracy: 0,4

Aim time: 2,6

Depression: -3,5

Engine: 600hp

Power to weight: 13,62

Weight: 44,045 tons

Hull turnrate: 30

Hitpoints: 660

Viewrange: 320