Okay but i found it hard to believe since they are working on this project since almost 1 year now that they will nothing do with it.....
The most expensive part of the project is the stage/representation one. Once Mk has wrote the songs, they have to do a first read of the book written for the play together with the songs and see if it works or not. If it doesn't work, there are two options, re-work on it or abandon it before you get into the expensive part of create everything that is needed for the stage representation.
I guess many musicals and plays are abandoned in that step. I´m not an expert but, I guess that's how it is.