We really need some kind of AI wizardry like DLSS, except for textures. I think MS said they were working on something like that, allowing a game to ship with low res textures, which are then upscaled in real-time by some kind of AI algorithm. Maybe something like that could be used for all kinds of game assets; developers could create simple, low-res, low-poly assets with PS1-level geometry and textures, and an AI/ML algorithm turns them into high-res, high-poly assets in real-time. Something like that might be the only way to get game sizes back under control.