I understand the dilemma well, and you bring up an interesting point regarding whether you think you are the person to do a Monkey Island 3a or a New “Popular Media” Monkey Island. It definitely mirrors the new Blade Runner/Mad Max idea.
I suppose my question revolves around the releasing of information regarding what you would have done, what your 90’s conclusion was? Because as you have said before, it has changed with time.
Why not do something like Mark Laidlaw and Half Life 3 and release your 90’s Monkey Ending, especially if there is such a slim chance you could ever get it back. That way it would be a closed book. The people like us who care, would be sad that we didn’t get to play it, but at least the information would be available for something that could have been. I also understand that it “written” is never as powerful as playing and living it, but it’s a compromise. I know I am sad that Half Life 3 got an ending without me getting to play it, but happy that it is out there. It would also tame the probably unending questions you receive regarding it.
Though failing that, why not try to work with Disney? I understand and have read your feelings regarding not having complete control over it whilst working, but if its such a “small fish” series to Disney, why would it matter so much to them if you came in requesting to make another Monkey Island. Like with Tim and the remasters it seemed to an outsider looking in, that they had control over how they developed those remasters and Disney just took cuts of the profits.