Just to clarify, for both REG and RES, once you are on a reroute you can be rerouted again and again and again UNTIL you reach your base. At that point the only two options scheduling has are to have you rejoin your rotation either directly from your base or via DH, or to release you from the rest of your trip. You cannot be rerouted through your base (but your reroute can start in your base, that’s different). Lastly, if they do attempt to reroute you through your base that is not a fly now, grieve later deal. You can simply walk away from the rotation.