Here is the updated looks.

https://www.baesystems.com/en-us/article/bae-systems-submits-proposal-for-the-u-s--army-s-mobile-protected-firepower-program

It appears to be a bit more streamlined and has new thinner LED headlights and perhaps a forward camera.

BAE said that they would improve the original M8 Armored Gun System with digital electronics and other upgrades. Note the wind sensor and double banks of smoke grenade launchers on the left side as an option.

There is a top-down view of this new BAE light tank, but I can't find it...looks a bit different than the original M8 blocky design...more futuristic.

Here is another turret, which I believe is also BAE's...

https://www.defensenews.com/land/2018/03/16/first-next-gen-combat-vehicle-and-robotic-wingman-prototypes-to-emerge-in-2020/

Note the CITV and lack of gunner's fire control doghouse. Note the forward banks of smoke grenade launchers and not on the side and the older rubber pad tracks and not the smooth band tracks. Notice the Israeli Military Industry's Active Protection System (the two tube side launchers), and the lack of bar LED headlights on the hull. It does have the same pepperpot muzzle brake gun though.

I don't know if this is the newer turret and hull or the camo net one is.

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ST Kinetics's offering:
https://www.defensenews.com/industry/techwatch/2018/02/14/st-kinetics-prepping-to-hand-over-bid-in-us-armys-vehicle-competition/