I can imagine this course of events too. Lucky for her she didn't required a "cool" instrument
But the kidding aside, I also hope for some lines from her. There should be, if most of the crew must concentrate on their instruments. But I must admit that Natchu seldom gets any solo parts. Is she that bad of a singer?
But much depends on how they go with that. Hopefully this won't be a one-shot type of thing like the SKE48-Song. Would actually be pretty impressive if this continues once in a while. This would leave Morishi, Natsu, Yukki and Makochan as primary singers during those songs.
On another note: Haven't I read somewhere that Naomin used to play some drums?
Anyway, if they continue playing their lives with an actual live band I am happy enough. It is so much better for passengers and the crew as well, as it makes the experience more lively with improvisational party instead of music from tape.
And your mentioning of VN: Have some on my PC, but hardly find time for it because I tend to watch more J- and K-Drama TV
But this should be a topic for the Lounge. Feel free to open it