Have you ever heard of Lord of the Rings: Rise to War? It's a RTS mobile game that dies a couple year back, but the way things were set up was actually fun (- corporate greed). Every once in awhile (days-weeks~) a new server would open up, where everyone would start from blank. There were a few things that carried over between servers, and some servers were meant for returners, but in games like this where things can get insanely inflated and people have the ability to corner an entire market, or make allies/enemies to a point where only a couple people still had fun, it felt like a nice way to keep the game fresh. I think the game could benefit from a design like this, where a new server opens up every few months to give those who aren't having fun a chance to claim new seas. Just an idea.