Well, I think a musical on the Romanovs could not leave out the tragedy altogether. This is perhaps indeed the problem of the whole project, that it might degenerate into a melodramatic tear jerker. One would have to strike the right balance, and what's more important, raise some questions so that the viewer is left to debate things.
With regard to Elisabeth, the show, yes, apart from the Austrian versions there were productions in Hungary, Sweden, Holland, Japan and Germany. Since October it has been showing again in Vienna.
The musical is not at all altogether sympathetic to Elisabeth. As Lucheni sings in "Kitsch", "I will tell you something, in reality your Sisi was a terrible egoist ...". It gives the ambivalent and contradictory picture of a woman who sought to live a life of her own in an age when women were denied such ambitions, but who ultimately cared about noone and nothing but herself. She increasingly lived in a dream world and was haunted by that death drive. Ironically, by killing her, her murderer could not have done her a greater favour.
To Robert,
If you're interested in the subject I suggest Brigitte Hamann's excellent key work Elisabeth - The Reluctant Empress.
Regards,
Silja