I personally don’t think Star will hit North America. We already have Hulu, which functionally serves the same content, but doesn’t have an international foothold.
I can’t see Hulu rebranding, so I think Star and Hulu will just end up being incredibly similar, but in different markets.
They could, but it’ll never happen. The only similar situation I know of is when HBO Max bought the Potter streaming rights from Comcast/Peacock. And even then, it ended up being this weirdly temporary thing that just served as marketing fodder.
The cost of buying the rights temporarily far exceeds the temporary value a service gets for that content. It’s much easier just to wait until the rights expire.
In a couple years, we’ll have to buy just as many streaming services, but it’ll be way easier to know what each service has.