One design iteration already has a working, implemented branch available, it’s just one of the hardest designs to get right, to remain backwards compatible, to have it work nice with generics and all the other features, etc.
So once they actually settle on a design (which they seem to have closed on quite a lot in the last couple of years), it might not take that long to happen.
So once they actually settle on a design (which they seem to have closed on quite a lot in the last couple of years), it might not take that long to happen.