Now that it is becoming a stage production, the adaptation could very well re-introduce the "mother" storyline and bring back the "Proud of Your Boy" song. I'm sure Menken would LOVE to do that in memory of Ashman.
That thought being shared, if it does happen, I hope that the execution benefits the show instead of doing it for the sake of honoring Ashman. That storyline was one of the problems with the original storyboards of the movie.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle