there is grading and new plumbing pipes being buried at the old tornado site right now.
There's also a ton of electrical work being done in Candy Apple Grove at the moment. If you went into the park today you could've seen electrical piping poking out of the gardens in the middle of CAG. I'm pretty sure it's preparation for Haunt/Winterfest, but with the work going on at Tornado it would not surprise me if they're updating the infrastructure of the area at the same time.