That seems interesting, not only because it says to me that they're trying to keep people free to be reorganized with whoever doesn't debut in the next year or so, but also because it's interesting to see who JE thinks is popular, or maybe who is talented but we haven't seen much of yet.
the introductions, capped in the order they appear:
Maybe this is a silly way to occupy my time, since in the end i'm always blindsided by whatever really does happen, but, i'm sure i'm not the only one. The ender, Days, was odd too. It was ebikisu (but no hasshi) and then Shoon on one side and Nozawa/Sanada on the other side. Everybody was in white except Nozawa/Sanada.
and Senga had a ton of solo stuff during Inori! I have to dig up my older version to be sure, but i really don't think he used to sing that much of it.