By then I think physical discs will be on their way out. I think next gen will probably be the last systems to feature physical media.
Potentially, streaming games will be more popular than it is now. Streaming tech is making a lot of headway.
Graphics will possibly be able to render using ray tracing tech, which means super photo realistic visuals and lighting.
It’s hard to be exact. Though, one thing’s for sure: I’m super excited to see what next gen will bring!