I think there could be a 1080p/4K upscaling console without a Large SSD or SSHD/HD and No Disc only digital game downloads. Kid version.
Then a 4K only console with SSD and a 4K Ultra Disc Drive. Possibly a higher clocked CPU and a few more Compute/graphics cores. Or even a better controller to compete with the XBOX Elite version 2. I dunno though. Adult hardcore version.
2 Versions in the 349.99/399.99 and 499.99/549.99 price ranges.