Even with all these advancements, 120GB for a game is still and always will be a lot!
if generative AIs get good enough then I suppose at some point the data transmitted for games and media could be significantly less than now -- you'd 'just' need to transmit the data required for the prompt to generate something within some bounded tolerance.
Imagine a game shipping no textures, generating what was needed on the fly and in real time to fulfill some shipped set of priorities/prompts/flavors.
we're not there yet but it seems like on-the-fly squashing of concepts into 'AI language' is going to be a trend in lossy compression at some point.