Maybe this is expected as I am a fan of SpaceX, but i would love to see China (after mastering reusability) doing their own Starship-style architecture.
It would open whole new industries for space such as internet (ala Starlink), space manufacturing, military, habitats, rapid cargo deployment (miltary & civilian), telescopes etc.
I think Starship is wildly overrated. The Raptor engine is a great development but Starship has shrunk more than once since initial design and I would not be surprised if it shrank more. The basic design concepts are good though so I am certain the technology will still find uses. Starlink has managed to be deployed fine so far even without Starship. Space manufacturing, well, no one has found that much of use to manufacture in space. Habitats might find some limited use for things like space tourism but it will always be niche, kind of like people who want to visit Mt. Everest. As for rapid cargo deployment, it is just so expensive it makes little sense. It make supersonic aircraft look cheap in comparison. Telescopes are also niche. What I think will be more applicable would be a global low orbit spy satellite network and possibly some sort of modern equivalent of Brilliant Pebbles ABM.