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.
I believe that they are planning to make their own platform, but they are very slow at development. They've been working on a 3D world game(?) HoloEarth for a while and that seems to be going nowhere with very little actual clear direction.
I think they have enough of a following to have success on their own platform considering their talents have tens of thousands of live viewers regularly, but I don't expect it to be an easy or simple transition.