So here's what I'm thinking. At the end of every month, Aikar saves and takes one of the SMP Town worlds and puts it on the event server and everyone has access to everything in that world and a PVP battle royale takes place. This could be a little bit like UHC where there are teams and everyone starts away from each other and there are borders. After 30 minutes or so, the borders start to close in.Because of many residences having empiness, you would not take fall damage. If you had fallen into one of these residences, you can just build out like normal .I'm writing this off the top of my head, but now that I think about it, chests in my opinion would be a bad idea to have open, so chests would be empty (you could use the world downloader mod as it only saves chests you open).The choice of what SMP it will be on can be random or voted for throughout the month.Tell me what you think Edit 1: StoneSky suggested it be called the EMC Purge!