Me:
And one more thing while I am still here.
Does WG plan to expand the game with more tank branches like on this picture which is fan made?
http://ftr.wot-news.com/wp-content/uploads/2014/04/mv53.jpg

Anthony Orwell(WG staff)
As for the game, we definitely have things in store for you. It may not look like the fan made picture, but we have nice ideas anyway. You will have to wait and see ! ;)
(That was in support ticket)

Later that day I met moderator in global chat and asked him the same, (I don’t know his nickname)
He wasn’t sure and he asked WG HQ,
After few minutes information was confirmed but it won’t be like on Bojan’s picture, they are still digging for data that they can use so nothing is imagined.

If this is not enough PM me in game and I will try to find that moderators nickname so you can ask him too.

I especially want to see the Polish tanks

You may try to install mods with reskins of few tanks to Polish ones. Unfortunately only Type 2597 Chi-Ha → 10TP Light Tank works in 9.0.

Whole original thread is in Polish so you’ll have to use kind of translator if you would like to read more.

I wait for Poland, Italy and Spain.

There are no way to build proper Polish tree. Original designs without unhistorical stretching and without copying UK/US/Soviet designs will end on IV/V tier with some light and medium tanks with maybe two TDs.

I don’t understand why they refuse to add tech trees that don’t reach tier 10.

Because you would get several shitty trees for low tiers or almost full ones but with large gaps and with copying Western / Soviet vehicles for high tiers. This is senseless because you have to invest a lot of time to make 3D models etc. and you will not get proper profit.

With large UE tree you may build really very interesting and strong tree with many unique vehicles and with vehicles for half European countries. TBH I would like to see separate Czech(oslovak), Italian and maybe Sweden trees as these countries have enough interesting designs up to X tier. But I would like to get some Polish, Hungarian or Rumanian designs too, especially for properly fixed Historical Battles.