Very possible, and definitely where they would put an entrance if this happens. However, my worry is that once GotG construction is done, they will close up that entrance area. That's how they are bringing materials in and out for the Cosmic Rewind project. It's been the main construction road for the project.
From my eye, I see nothing that signifies they are currently working on PLAY! as it currently was originally intended. There's no ign of any work outside, and nothing going on inside either (if there was, we'd see more equipment around the building or potentially loading things into the building).