User blog comment:Green Ninja/Series 8 is Happening, But Series 9 May Not/@comment-25071687-20150918133044/@comment-27605056-20150918133820

Yup, it's too early to predict if there will be S9 Mixels or not. Itaria No Shintaku also said that he didn't pay too much attention for the theme. The only thing we'll need to do is just to wait even if it takes forever (not really).