Over in “The next Stern pin” thread, there are posts speculating that the Japanese puzzle added to the Stern shop signals Godzilla as an imminent title.
Extending this logic - if it’s sound - the wizard puzzle could be a hint at a vault or other type of re-do of LOTR.
Personally (selfishly), I hope not, as I added LOTR to my collection not too long ago, so would be a bit frustrated if it gets vaulted. Redone differently would be another story though, depending on how much of it is redone. As we see from themes like Simpsons, Jurassic Park, Black Knight, and Batman, and older generic themes like car racing and card playing, a theme can be “redone” while still being changed tremendously in the later re-do.