With what? Are they renovating T55s now?
The Ukrainians will get even more air defense after the missile incident. Italy is delivering more artillery and Sweden is delivering almost $300 million in additional military assistance, and Swedish weapons have about the biggest bang for the buck.
The Ukrainians are very enthusiastic about the victory in Kherson, the Russians have pulled back some kilometers from the left bank of the Dnipro to escape Ukrainian artillery and they are even fortifying the Crimean border.
It's still a slog, but it looks to me like the Russian army in Ukraine may simply decide it doesn't want to fight anymore and withdraw like the Russian Army in 1917.