I hope it's neither digital nor cloud based, I'd honestly hate if they went in that direction. Sadly, I feel like it's pretty much inevitable at some point in time. Regarding the more technical side of the matter it's pretty much a shot in the dark, as the PS5 already features the most recent technological advancements such as a fast SSD, ray- racing, and a CPU with a high core/thread count. With all this new stuff, the constrains associated with 7th/8th gen gaming (e.g. inability to stream assets instantly due to a slow HDD, reduced NPC count and lack of interactibility with the environment due to the terrible CPUs, static lighting due to lack of ray-tracing etc.) should no longer be a thing, but I'll withhold my judgment until I see some proper next gen games. Only thing I can hope for right now it's full blown path tracing, which would be the next step in the ray tracing technology that allows an even more accurate simulation of light bounces. However it's a pretty resource-intensive technique to implement, and as of today only graphically simple games like Quake 2 RTX and Minecraft RTX feature it. Also, not sure if PS5 supports an upscaling tech similar to DLSS, which uses AI to render at a higher resolution (e.g. you set your game to 1440p and DLSS makes it look like legit 4k), and if it doesn't it would be neat to see, as focusing too much on achieving "true" 4k or, god forbid, 8k, seems like a waste of resources.