Increase movement speed in castles
It would be nice to have a "home turf" movement speed buff of 50% in your home castle since running around the workshops in a 250 tile castle doing your daily household stuff is just too time consuming. The "solution" of running around as a wolf all the time is unimmersive as it's quite a challenge for a wolf to handle a forge and a loom with claws and fangs. ;-)
Maybe make it only available if not holding a weapon to mitigate PvP issues or make it available in PvE only.