I note the following from Tokyohive's announcement about ANGERME's name at
http://www.tokyohive.com/article/2014/12/s-mileage-change-their-group-name-to-angerme"ANGERME will be releasing their first single under the new group name, entitled "Taiki Bansei / Otome no Gyakushu" on February 4. One of the title tracks "Taiki Bansei" was written/composed by Nakajima Takui, and arranged by Suzuki Shunsuke, while "Otome no Gyakushu" was composed by Kawabe Hiroshi and Ueda Tadashi, and arranged by CMJK".
I could probably find out myself with lots of research, but some people here will know instantly: none of this release seems to have been written by Tsunku.
* Is that likely because of his ongoing health issues?
* Has this been characteristic of other H!P releases in 2014?
* And does this mean that Tsunku is allowing H!P to progress without his input, and that they would therefore even survive his full retirement should that be sadly necessary? (I apologize if any of these questions is ignorant or naive!)