Sounds fun, but.... Doing this activity would cause lag. Where would the fight be? This can cause server problems, and in worse cases it can become A REAL SERVER WAR. What would the donors get? Attempting to do this might bring other fun servers from coming. Hackers, which server would ban them? What if the other servers don't participate? If you can answer all of these, I support If you don't, no support.
One server with a lot of ram will be made by the owners for less lag. Both of them will pay. Alone on that made server. It will be a friendly fight. People will be placed on one side of the map. You can go around stealthily. No donor perms cause it is 2 different servers. What do you mean? Both server with an automated plugin. (One server has this already) Noobcrew and Cypriotmerkz will have to send the other server owners an email that will explain the server war rules and asking if they want to join.
For what do you mean, I mean other fun game modes that are coming soon in Mineverse. And for the last one, what is the other servers disagree with this event and don't participate?
There are a lot of other servers it won't be that big of a problem. Noob and cyp could stop participating in the wars for a bit of time and let someone else take charge while they do their new gamemode.