"hopefully it'll stay up for a long time", that's the thing Last world. That's a negative not a positive. Resets are extremely fun on war servers just because the first day (and the first days) are always and will always be the funniest days of a war server, where everyone compete for lvl 100 and to get the best spawns, make a new name for yourself, etc etc.
last world won't last without resets atleast once every few weeks. would be boring to play a war server that never resets, or does once in a couple of months or whatever you're planning.. But oh well, I gave up when I realized you want to create a war server that "lasts" lulz, takes all the fun wars out of the actual war server.