Not sure where the speed comes from, Panzer III only does 25mph. I can see Ausf. J and G being added - don't need a town killer since the PanzerF already exists.
Unless something else gets added like the Crusader it basically is outclassed by every tank.
I would like to see it for historical value - Barbarosa campaign for example vs the T34, if a Crusader gets added for a north Africa campaign.
Unless more early war tanks get added, its simply outclassed by everything period.
Pz4F already is 40 eny, I can see it being bumped down to 30 eny and having this tank at 40 eny.
Then again if a Puma gets added nobody would drive a Panzer III since its same gun, but 10-15 mph faster.