Hi SirEmi, I think that the game should have built-in and/or story-related goals that the players can aim for. They can be with or without rewards, and they should involve short, mid and long term goals..
I've been bored for a while now, and I honestly don't think anyone can catch up to me if I continued playing. Haha! Maybe I should just declare war to everyone in the top 20 to liven things up a bit..