Hi
@RayFelNothing in the Microsoft 365 Roadmap or recently announced at Enterprise Connect or Inspire. There is a uservoice open for it here
https://microsoftteams.uservoice.com/forums/555103-public/suggestions/34826992-btoeHowever, reviewing the comments on the uservoice, it suggests that Microsoft are not moving forward with BToE, which is also suggested here
https://community.polycom.com/t5/Skype-for-Business/Multifactor-Authentication-BToE-and-Teams/td-p/1...Since there is no official confirmation, I would personally reach out to Microsoft in a Support ticket and see what an official response would be.
Hope that answers your question.
Best, Chris