The one thing I would really like for ethernet is a smaller connector. But one that is still able to handle self-made cables. So something like just throwing a Type-C connector at it probably isn't going to work.
It would be difficult to make a port that works as USB-C with ethernet as an alternate mode. In USB-C there are separate transmit and receive differential pairs, whereas in (gigabit and later) ethernet the pairs are bidirectional.