The less advanced 3D graphics are, the worse they tend to age (esp. if they went for a more "realistic" art style). This generation's graphics have been outstanding at their peaks, and I think will tend to age very well over time. However, there is still plenty of room for improvement, and that Unreal Engine 5 demo from a few weeks back showed the kinds of improvements to things like lighting and animation we can expect in the future. Once we start to get more linear games that max out what the PS5 and XSX are capable of, it wouldn't surprise me if that's possibly what such games would look like.