User blog comment:NiigakiRisa/Who will be next lead vocal in Morning Musume after Reina graduate??/@comment-50.12.45.19-20121120040625/@comment-3180730-20121121171953

Haruka probably won't be sub-leader yet. Theres only been 1 time in Momusu's history where a newer generation has been leader. Because Miki was already in Hello! Pro as a singer, and she participated in the 4th gen audition and failed, but she had the most experience over the 5th gen and was technically a senpai to them.

Haruka on the other hand is still the youngest and the 9th gen have more dance and singing experience over her. But i think they scrapped the sub-leader thing in Hello! Project, since Risa was the last sub-leader of Momusu because Tsunku couldn't decide whether Sayu or Reina should be it, even though Sayu is older.

Tsunku knows Kanon has potential as the lead singer, it's just that her dancing skills arn't as complete as Riho, but Kanon has a very mature singing voice, no doubt she will become the lead in the future.