It would be unfortunate for either of the new consoles not to have at least one USB-C port. If games from these systems can only be played from the (faster) internal drive and there is no upgrade solution this will make migrating games from external drives a hassle.
Type C can currently bump up to 20Gbps, and USB4 (Thunderbolt 3) will take that up to 40Gbps. USB-A ports are capped at 10Gbps, which would be fine for today but as game size creeps up, migrating data from external storage will become more frustrating. There's also the added benefit of USB-C Power Delivery and DP-alt mode which doesn't require the full USB 3.2 2x2 (20Gbps) implementation.
Doesn't this require thunderbolt?
This does not require Thunderbolt on either end of the connection.