So after looking at Team Locke up close, there are some slight differences between how they look in the poster and how they look in the H2A cinematics.
Look at [Romeo's] legs in H2A, and you'll notice that there is a red "Tron" strip going down the side, but if you look at him in the poster, the only strips on his armor are actually blue/teal.
Also, his visor in the poster looks to be more of a orangish-red, whereas in the H2A cinematics it's definitely lacking the orange hue.
Locke's helmet in H2A has a dark/black section on the front, but now the black is greatly reduced and showcases the beginnings of his yellow insignia on the helmet.
Not a lot of importance here, but I found it interesting none-the-less. It seems they've been planning to have these four specific helmets to match the characters for a while now. It's just neat to see how it matches now that they've stepped out of the shadows, and what characters fit what colored visor.