Here's the way it seems to go. We have to start a new map, then wait for updates in what ever plug in allows us to move to have more than one map, then put the old map back up for those who want to stay in there. What is funny is that once they see the new land, clean and clear, they get the urge to build again and eventually the old map is abandoned and everyone is playing on the new map. So then the new map becomes the preferred map. Then there is an update, we put out another newer map, wait for the updates to allow us to access what was the new map, and yet again, everyone ends up in the newer map. So, even though everyone wants to keep their creations and such, once they see a new map, they just can't help but start building anew and abandoning their old creation.
So basically, even if we do update the map, at some point, the old one resurfaces at some point anyway. 
It seems the votes are well in favor to update the map. So far 10 people voted to update the map: 8 to update to a permanent map; 1 to update to a temp map (remember Soka and me moved our votes to the 1st choice); and 1 to update the map but stay in current version.