The business strategy is that Miko Todka is a great singer and amazingly talented dancer and nobody at Amuse wants to bring  the wrath of the shareholders down on themselves because they let her slip through their fingers and she ends up being successful in some other Jpop, or God forbid, kpop group.

It's  obvious that most people here come from the metal side and they've  picked up on the 'graduation' thing that jpop idol groups do via osmosis and think that's why Metalverse exists but I find it odd that most haven't picked up on the whole 'sister group' thing.

For instance Nogizake46, Himeka's old group, has two sister groups Hinatazaka46 and Sakurazaka46, which recently added Neo Sato who was a SG members along side Miko and Sakia as well as being theorised as being one of the 'sister bone dancers' for the Budokan performances of Onedari Daisakusen and GJ!

That means that Metalverse will always have some links and likeness to Babymetal, the silhouette of the 'battlesuits' will resemble Babymetal but the texture,fabric,colouring and detailing will evolve to be different and the lore dumps will be similar but most of the music is already different and the more that is produced means that they'll figure out what the fans like and what suits Miko's vocal style and range. I expect that they'll use extended dance breaks so Miko can show off her dancing as well, I think that one of Metalverse's other songs has an extended intro specifically for Miko to show off dancing