With all the production hell, leaks, and way movies are made do you really want a live action MOTU movie? The movie fans would want to see would require a high budget which can be seen with the 87 movie. Regardless of how you feel that movie wasn't the movie fans had in mind when they first saw that movie and left a memory of disappointment. With the way movies are made now I'm sure Sony(or whomever gets the rights after 2023 with Sony doesn't put out one by then) would put the budget to make something closer to what fans want but it could still leave a lot to be desired.