Can .bin files be loaded from other domains?

Does the WL.scene.load() have to load from a .bin in the same domain?
Can the newly loaded bin have additional components that are not in the already loaded bin?

Yes, it can have additional, as long as the bundle in the original has the components JavaScript
Not sure about the same Domain, but I think it should be doable to allow it to fetch from other domains in case it doesn’t already

great. thank you.