Yesterday, big thunder mountain's lift motor was running all day. Perhaps breaking it in. There has also been a lot of loudspeaker talking but I couldn't make out what they were saying. I was also witness to a train running down a section of track that could be seen through the fence on the big thunder ranch side. It didn't seem to run the whole track but it was much much quieter than it used to be.
edit. Upon reading other threads, it seems this has been happening for a while. I never noticed it earlier in the week.