Skyscraper Rhapsody.
Sometimes I think speculating on musumeyaku is one of my favorite parts of Zuka fandom, as I'm not there to see the shows myself at the moment.
Skyscraper Rhapsody! No musumeyaku lead listed yet! No "shin-musumeyaku" in line for top in the cast!
My guess is Hisaki Seara. She's not in line for top, but she's a minor star with three leads and plenty of support/nibante-musumeyaku roles. www.takarazuka-revue.info/tiki-index.php
However! We also have the lovely Kaga Ririka, a Sky Fairy who has gotten some notable shinko stage time. www.takarazuka-revue.info/tiki-index.php This would be about the time she gets her first push, in a minor Bow play with one of the smaller rising otokoyaku stars...
I don't know much of Riri-chan, so I'm intrigued by the idea of her getting a lead. And Star has no shin-musumeyaku at the moment. It has a couple of musumeyaku support stars who get notable roles at times (like Seara and Kitori Mariya.) Saotome Wakaba has one shinko lead, yet she's not getting this Bow Lead, so maybe she and Riri-chan will be Star's new rising ladies together, like Remi and Nene back in Tsukigumi in '04...
Hmm...