I kinda want this to be the outcome instead. I wanna see S2 Mike back man
I'm not worried about the video. I don't sense tension as much as apprehension. Mike is nervous and not sure what Will is saying yet, and Will is making himself small - his posture implies shame or fear, but not in a big way. I think this is probably not a coming out scene, but something like a "I've been sensing the mind flayer" or "why didn't you tell us you were having Vecna headaches" scene. Reminds me of the start of the crazy together scene. More worry than tension
The new photos with added brightness make it look more like Mike is concerned. Now it reads like he knows something is wrong with Will, and he's going into "Will is in trouble" mode.
Regardless of what Will is saying, it looks like we're getting season 2 Mike back.