http://www.defencenet.gr/defence/ind...946&Itemid=139
Presentation to Putin of the new T-90ME and of the 2005? BMPT.
According to the article, the new T-90 has improved armour with special alloys with titanium, better performance during night operations.
It has a larger turret which includes a 360 degree periscope for the commander of the tank, the armour of type Relict to better withstand enemy missiles with Tandem head, new wheels (not sure what the english word for them is), replaceable A/C, etc, and possible new engine of 1200 horsepower.
I won't translate what it says for the BMPT since it says it is the version released in 2005 (which IIRC is already in the game).