Yes, it is the Mark 2 that I meant. The Mark 1's, I hear, will also be upgraded. It all starts with 1 prototype, before things enter into serial production.
There are no plans to upgrade the Mk1 as of now. Too expensive. Perhaps as an MLU in a decade. Lahat is not entirely necessary anyway. Very expensive and only a few tanks may carry it within a regiment. 6 at most per tank, same like the T-90.
Anyway, if you have the latest info on the chart I posted (I believe there are errors), please correct them if you have the information. This is for everyone actually.
The whole table needs to be reworked. Global security has some relevant info, just google specs tankname globalsecurity. Quite accurate and useful for the most basic of information. Books are the best. Some authors make mistakes, but information can be checked with other sources for consistency. For eg: Steven Zaloga thought Obj 188A1 had STEF, which Vassily also quoted, both are wrong as mentioned by Methos and Damian. So, don't expect accurate information every time.
If you want decent information then, from the top of my head, I think the T-90 has a 950HP(V-92) engine to be upgraded to a 1130HP engine(V-96). But HP alone isn't enough to quantify it's capability. The Torque on Russian engines is at least 20-25% of power as compared to 10-15% on some western engines in operation(dunno about the new models). The gun is a 2A46M-5, 48 cal gun ( can be upgraded to the 2A86, 55 cal) and it fires almost everything including missiles. TI - Currently carries the Catherine-FC(basic specs are available from Thales website, FoV, video resolution, bandwidth etc), while the upgraded one has a Russian TI called Kalina(no info available). I remember Catherine being in the 8-12um band and with only 2X zoom. Quite obsolete if you compare to M1A2SEP, perhaps even the T-90 MS's Kalina. Acceleration and speed are governed on all tanks, they can go faster but fuel consumption is higher.
When you talk about Western and Russian tanks, you take it for granted that all the stuff mentioned in the table you posted are world class specs. There are other things that matter, like maintenance, costs, training etc. Other than that all tanks have some design advantage or disadvantage over another tank unless you bring in a fourth generation tank. For eg: Bring in the Obj 195 and it will chew through all the tanks mentioned in that table and still have room for more. Basically the F-22 of the ground forces.