The gatefold LP images theory is compelling, but I'm leaning towards the posters being imagery from an upcoming music video directed by Neil Krug rather than images from the album artwork, considering BOC seem to like to have more creative control over the actual packaging. It seems to me like that would tie in with the current promotional cycle as well. I'm hoping that the album has a dirty lo-fi Filmmaker-esque aesthetic that's more in line with the VHS tape, but I'm ready to be surprised.
I also can't imagine them doing another highly involved ARG after the convluted cycle for Tomorrow's Harvest. I'm guessing like a few others that this will be a shorter rollout with a big announcement coming some time towards the end of the week to squash the speculation. I've seen a few people commenting that it's unlikely that there will be anything coming out on RSD because it's a much more controlled operation, meaning a leak would have happened already - but I'm still holding out the vague hoping that we'll get a flexi hegaon disc somewhere!


