Went and explored the entirety of Tom Sawyer’s island on my WDW trip last week. I had never been the fort on the very back of the island. Had no clue there was a jail, AAs, escape tunnels, and other sights. The boats were packed with people getting one last look. One bizarre discovery were the guns you could fire from the fort that point right at Big Thunder Mountain riders. Yes, obviously it is all fake but it was unsettling to realize all this time riding Big Thunder we were being shot at. Who knew?!?!
From a management perspective, TSI is a nightmare for guest with mobility issues. I can see why they would want to remove it. It is difficult to get to and while what is there is charming, I do understand the desire for something different in its place. Let’s hope Disney can deliver.