Source: http://www.youtube.com/watch?v=1kW6SgUgzuc

Murazor is well known and popular Russian blogger with very good info access. In his latest video, he confirmed, what you might have read earlier here:

If you have VK3001H in garage the moment 8.8 goes live, you will get your VK3001H tier 5 heavy tank with your original crew and you will get for free a VK3002M tier 6 medium tank with a free garage slot and a 100 percent crew.
概要肉翻: 如果8.8上线前,你车库有 VK3001H的话, 你将会在8.8上线后, 得到带着旧vk3001h车组的新5级重坦 VK3001H, 以及免费得到新的带着100%熟练度的6级 中坦 VK3002M