What's in the shed? Plausible Idea

So I only just realized that mystic timbers shed is perpendicular to the station, and not in line with it. After looking at a few 3D renderings, I have a feeling it is a heartline roll similar to the one at the end of Outlaw Run. It would make sense because Outlaw Run has the leftward roll with a tight right turn at the end. a similar element would fit well in the shed, given the apparent length of it. Thoughts?

https://coasterbuzz.com/Forums/Topic/whats-inside-mystic-timbers-tunnel