Well, this is a bit odd. Someone, writing as anonymous, wrote a comment under the recent daily translation that he hates me because I am arrogant, but that he's going to share this anyway (the post ended up in spam folder). Not a leak, just a preview (possibly WG sanctioned).

This is NOT confirmed, keep that in mind
List of changes in 0.8.5 version in comparison with version 0.8.4:

- added new German research tree branch, Medium and Light tanks: VK 2001 DB (tier 4 MT) VK 3002 DB v1 (tier 6 MT) Indien Panzer (tier 8 MT) Prototype der Arbeitsgruppe A (tier 9 MT) Leopard 1 (tier 10 MT) Aufklarerpanzer Panther (tier 7 LT)
- Added new Soviet Light tank branch: T-60 (tier 2 LT) T-70 (tier 3 LT) T-80 (tier 4 LT)
- American Premium tier 3 SPG Sexton moved to the British tree and becomes available for sale in the Store.
- Visual models fixed for: IS-3, Valentine AT, Pz V Panther

So yea, the Indienpanzer will follow after the VK3002DB, which is getting renamed to VK3002(D).

Also, here's the preview of the 8.5 German tree



- American Premium tier 3 SPG Sexton moved to the British tree and becomes available for sale in the Store.
- Premium tanks added to Supertesters' accounts for testing:
British tier 5 heavy tank A33 Excelsior
Soviet tier 10 tank "Object 907"
US tier 10 medium tank M60
German tier 10 heavy tank VK7201
- Visual models fixed for: IS-3, Valentine AT, Pz V Panther, Pz IV/V, Object 263, VK 3001H, Conqueror, IS-4M.
- IS-7 maximum speed increased from 50 to 59.6 km/h
- Shell speed for 17сm PaK K72 gun increased from 850 to 925 m/s

- Added new Asian map: "Pearl River"
- Maps reworked for improved rendering: "Ziegfried Line", "Southern Coast", "Malinovka".
- Visual and gameplay updates for maps: "Redshire", "El-Hallouf", "Karelia".
- Changes made in Assault mode for maps: "Malinovka", "Karelia", "Sand River".
- New color correction filters added for testing in improved rendering mode; maps: "Steppes", "Himmelsdorf", "Live Oaks".

- Premium consumables (medi kits, repair kits) are now available for credits (price set according to gold-to-credits normal conversion rate)
- Platoons for 3 are now available for standard (non-Premium) account users