[Mirai Noah]

The new units names all have a slight twist to them:

新ミニモニ。 [Shin Mini Moni or New Mini Moni]
プッチモニV [Pucchi Moni V]
ZYX-α
続・美勇伝 [Zoku Vi-yu-den or Continued Vi-yu-den]
タンポポ＃ [Tanpopo #]

I think that the reason that so many of us are upset using the old names is because, while many of these groups had multiple generations, they have been on hiatus and/or pretty much considered disbanded. Vi-yu-den, for example is simply reusing the name, as it was always just Rika, Erika, and Yui. Taking three girls and calling them the new Vi-yu-den (or shall I say Continued Vi-yu-den) is kinda random. The three original subgroups from Morning Musume though all had themes, so assuming that they continue those themes, I'm fine with them. And ZYX-α is probably the same as the original, sans Mari and Megumi.

And about LinLin - I had a feeling that she could really, really sing, but that she always kinda cutesied up her voice for Morning Musume.

EDIT: Info on JPM says that Erina is in Pucchi Moni.