This is something that has me optimistic about the ride's remake. Splash has always been a musical attraction, something Disney doesn't do much these days. When the dust settles, the ride will remain musical with an excellent score to source. Incidentally, much as I like Dr. John, the choral arrangement of "Down in New Orleans," used for Disneyland's mini show promoting the movie, feels like it would be right at home in the new ride.
EDIT:
Agreed. The music for this attraction is the only thing I’m not concerned about.