The rumours regarding how one of AKB0048's members had ended up being absent varied alot. Some people said she had simply gotten sick, others believed that a certain purplette (and by extention, the resident Gun-Girl) had something to do with it.
Then, AKB0048 had dropped a bomb at a recent stage of Team K regarding the next bigger concert. In the middle of one of the MC's with the full Team onstage. Shiraki Chiyo had been in the middle of speaking when the screen behind them suddenly changed colour to white before displaying the words:
True Star: Shino Hoshina Succession Concert!
Of course, Chiyo didn't get to finish her scentence because of the excited roar from the audience.