I should have made myself clearer. The first clean sheet designs which seem to maje it into service.
But they haven't. The Armata platform is close to making it, but even so it's lost quite a bit, as right now they're primarily working on only 3 vehicles, MBT, IFV, and ARV. Originally something like 30+ were planned, and the 2S35 seems to be set to proceed on the T-90 chassis. And the Armata platform is the least significant one.
And while BMP-3s are new builds they are nevertheless heavily influenced by their predecessors in terms of design. One can't make a T-90M out of a vanilla T-72 either but both share the same design heritage.
I mean, the difference between a BMP-3 and a BMP-2 in terms of design is about as significant as the difference between the BMP-2 and the Kurganets. Are you trying to say that the Kurganets rectifies many of the problems with the BMP-3? Because I would agree with that, but in terms of sheer novelty the BMP-3 was totally new. Unlike the T-90M and T-72 which are still the same basic design (in fact you can relatively easily retro-fit the T-90M turret onto T-72Bs).
As for Kurganets. I thought they teally needed them as reequipping all the BMP units with T-15s will be too expensive.
They do need it. But it seems to have caught some flak for being "too tall". Though honestly that's just what I have picked up. I do know that it's facing some major redesign, but the details are lacking. And the Bumerang has also changed, between the parade variant of '15 and '16, though it seems to be on track to enter state trials and experimental exploitation unlike the Kurganets about which these things are fuzzy. I'm honestly not sure, at this point, how they're going to go about splitting the IFV brigades between the T-15 and Kurganets. Initially the plan was to have heavy Bdes on all Armata chassis vehicles, medium on Kurganets, and light on wheeled vehicles (Kamaz Typhoon MRAPs or Ivecos Lynxes were considered). But then the Bumerang entered the scene as another medium chassis, but wheeled. And the light brigades seem to not have materialized. Currently ~120 Typhoon MRAPs on both Ural and Kamaz chassies are in service mostly with SpN units, and possibly recon, which is also where quite a few of the Lynxes ended up. Meanwhile the VDV actively pushing for the 4X4 Typhoon to be airdroppable, and carry a 30mm (maybe 40mm) combat module (
Вооружение Ð±Ñ€Ð¾Ð½ÐµÐ°Ð²Ñ‚Ð¾Ð¼Ð¾Ð±Ð¸Ð»Ñ "Тайфун-ВДВ" - Ñкобы 40 мм автоматичеÑÐºÐ°Ñ Ð¿ÑƒÑˆÐºÐ° - ak_12 - the one on the left is a weight for driving tests, on the right a real module minus the weapons).
So now it's a total mess. The Armata platform is the further along, and has considerable political pull so it will go ahead and we should expect to see all 3 vehicles for it in service soon. The new howitzers will also go ahead, but likely on the T-90 chassis. Bumerang will also go ahead, eventually, as the BTR-80 is just too old. but the BMP-3 may stick around yet, in various upgraded variants. They recently showed one that radically changed the layout, with a rear troop hatch and a new unmanned weapon station but with the same weapon systems, and new electro-optics. Also they showed one with an unmanned 57mm autocannon module. Right now they've resumed some purchases of regular vanilla BMP-3s, ATGM carriers, and even some BMP-3 based ARVs, and if the Kurganets is delayed substantially I wouldn't be surprised to see more BMP-3 based vehicles enter service.