Well, what don’t you understand?
Oskars at support already told you there’s no timeline to discuss and to keep checking official announcements. That’s pretty clear - they don’t have a timeline to share, and when they do have news, it’ll be in the official announcements like in the release notes.
If you want VTI functionality, you’ll just have to wait like everyone else until Mikrotik decides to implement it and announces it officially. Or even better, offer a serious business case that needs VTI.