I have just recently let my Gold membership expire and checked on the game.

It let me all the way in with a "Free Trial" and offers me a Free Tier 3 tank and 3 days of premium if I subscribe to Gold membership again.

Does anyone know what that tank is?

I have a sinking suspicion that it is the terrible Pz II J

That tank sucks. And I already have it.

if it the Premium tank is the Pz II J does that mean I get some gold or silver and if so how much?

I can't see how much I would get from selling mine as I have complex equipment on it and should I progress I will lose it all (including tank I think)

Btw, Pz II J is such a troll. I'd like to see a guide into how many tanks it can actually play against and which ones it can actually hurt.

It's matchmaking rarely puts it in lone Tier 2-3 battles too making it battle upward against many tanks able to pen it bypassing its only use.

S35 all the way.