well, this is a sad turn of events. Wargaming apparently decided that all new premium tanks will enter the game only via giftshop. It all started by Quasar’s post and one of his answers:
So, basically, we now have confirmed that ALL new premium tanks/airplanes will enter WoT or WoWp via gift shop only. Which means: if you still have the Superpershing gold, you won’t be able to buy some other new premium tank for it and will have to wait until 9.0 or so to buy the Japanese premium Chi-Nu Kai, or the Soviet premium T-44-85.
What a nice moneygrab. But then again, I guess stuff like this gets pretty expensive.