[Marcello]

Interesting some of the choices they have made.
The replacement of the NSVT with a PKM is against current trends, though of course it has its own advantages, such as ammo commonality with the coax, more rounds carried and a dismountable mg.
It also seems, if I read the drawing correctly, that while they added a CITV equivalent they deleted the commander cupola, though some fixed periscopes were added to compensate.
Armor, engine etc. modifications seem fairly conservative incremental upgrades.
It also begs the question of what else, if any, they are working on. Certainly with a now well oiled T-90 production line, thousands of T-72B upgradeable to near T-90 status and little money for tanks purchases there must be a lot of incentives not to rock the boat by introducing a radically new design.