I think DIN8 shares the same 5 pins as DIN5.
DIN13 has nothing in common so that would be a change not compatible with the current connector.
But can be remedied with an adapter cable.
In my opinion, we should go the DIN13 route to avoid case modding to use the new fancy stuff easily preserving the cases.
I believe who ever builds himself this board can do as well the adapter cable.