1. Quite often the number of fans you have can change in a month, making it very hard to guess how many CDs you want, could we get an option to choose how many to print at the end of the production cycle instead of the start?
2. In real life idols' image can massively alter if they want an image change, maybe we could have a mechanic where we can invest a lot of time with the stylist to give idols a big image change with a bigger than usual change in phyiscal stats but limit it to once a year with the opportunity for it to go wrong?
3. I'd quite like it if new members could have their own oshimen if your group is famous enough. I don't even think it needs a mechanic tied in, it would just be a nice detail.
4. Also might be a nice touch if you can pick a place for your group to start in, with each member having a hometown. Would give a nice feeling of expansion as you switch to bigger auditions and see idols coming from further away