Nice idea, but i suppose, it would fail (again).
We had this option already in the past. The old PvP-Server. Every hardcore PvPer was expected to take the LE out immediatelly. They didn't? ... oh surpriese ...

But maybe we should start that experiment again, just in order to see, how high the percentage of PvPers is among us.
The only disadvantage: Maintaining a server costs money, work and time.

As an PvE-Player i would support it immediatelly ...getting rid of all PvPers from "my" server ... yeah!! Dreams became true ;-) :-D