Sounds like the StuG G actually becomes decent now.
I like how some people already fear that it will become OP. Everything that makes the Soviet OP T-34/85 or IS-2 meta harder is very welcome. Now I can use the allied fanboy term from the last patches: Learn to adapt.
You don´t attack SU-85s with mediums frontally. Neither should you attack StuGs this way.
Meta prediction: Spotting scope doctrines will become way more common.
We have played with the changes already. It was a tiny bit stronger in alpha, but it also got cost increase.
With its survivability and pen going up and cost staying on current level, it becomes most cost effective TD in game, unless you believe 10 range less then 60 to be worth 35-45 fuel and much bigger menpower price(jackson, SU-85, JP4).
I'm not saying it will be OP, but there is quite high chance for that, given fastest vet speed and best vet1 ability in game a TD could have.