I think it’s about HIGH TIME to get out of Universe 7 once this Arc ends

[Lionel]

They may choose to explore the more interesting and established universes like U6 and U11. Unfortunately, many of the others aren't as memorable and it might start to feel repetitive or bland to delve into each and every one. A cursory glance of the less elaborated ones might be best for at least the time being.

I stand by the sentiment of exploring the Makai realm if we're going to be visiting other dimensions or universes.

[Kodoshin]

I mean, if we do leave Universe 7 at some point great, but if not I'd love to see a mini-series or something dealing with some of the more interesting other universes. Feels like a waste to introduce so many new characters and just cast them off. Then again, I wonder if this is something the anime does in place of more traditional filler if it ever returns.