Thank you for all the information on the ghosts/younger versions of people in the show.
Even if the original version did not make use of the ghosts, as the DC show stands, I felt like the ghosts were really underutilized (though it was nice to have them stick around during intermission). Seeing the original stage directions that CPD posted, I can see that the cast almost acted like thier own ghosts, freezing in place and then resuming for the montage.
With the more up-front and direct presentation style of the songs that Schaffer uses, I think that having the ghosts would reinforce the whole "memory" aspect of the show the way the original stage directions did.
Oh, and one other thing. Please make young Stella mouth the words that modern Stella is singing, instead of singing along with the rest of the chorus. That really bothered me while watching the show in DC for some reason.
Xanadu! Can't cry on cue!