This may or may not be feasible depending on how the code is. Now don't get me wrong, I appreciate the "respawn" button, it's great for getting out of stuck areas. But on destructable maps I'd like to be able to reset the world without going through a massive unload/reload, going back to the main menu and restarting the same map.
I mean I can understand doing that for loading a different map, as different assets need to be cleared and instantiated. For the same map, and especially in multiplayer when the server owner enables destruction and wants to reset the map for the users so they can wreck things again without having to punt all the players and restart, it could be useful.