Here is an interview from a month ago where he talks about the future of Hololive post-Breaking Dimensions: https://www.youtube.com/watch?v=UUhYPvYGepE
This is an interview aimed at Japanese college students talking about what Hololive is and what to expect as part of Hololive's staff: https://www.youtube.com/watch?v=-pLPaeA3K5w
Here is an interview done with Anime News Network where he talks about Breaking Dimensions, talent-manager interactions and exposure of Hololive to normies/the mainstream audience: https://www.animenewsnetwork.com/interview/2024-10-04/bringing-hololive-to-the-u.s-an-with-motoaki-tanigo-ceo-of-cover-corp/.215676
On a side note, outside of Hololive, VShojo's Matara Kan is now a member of a mainstream talent agency, William Morris Endeavor: https://x.com/MataraKan/status/1846340762495004849
This is the same Endeavor that owns WWE and UFC, so the mainstreamification of vtubing is all but inevitable in my opinion, it's up to the current audience to not allow tourists to ruin it.
You do, its why despite enjoying anime plenty I've never really gotten into it beyond some funny clips I've seen and enjoying the awesome stupidity that is Mori's rapping.
But that's the point, vtubing is a sub interest under anime. Which means it can't exceed anime's mainstream appeal period, and needs a lot to even catch that low ceiling. And right now anime's mainstream is huge relatively but still niche and wierd to most people, so vtubing is miles from that.