Okay, if that idea isn't liked, then what about this:
A Future RPG, like, not hundreds of years, just, say 25. So, the year would be 2032, and basically the United States of America have split up after a civil war that has been going on since 2020 when President George W. Bush was assasinated. The chaos made a lot of the other countries' leaders loose their heads (Not literally) and a war was started between England and Scotland after an English scientist found and captured the Loch Ness Monster, removing it from the Loch and taking it to his Zoo to make millions. Since there is a law in Scotland that if the Loch Ness Monster is found and removed a fine will be made, the Scottish demand to James Cameron (Face it, he's gonna be Prime Minister by then) that they release it. Cameron argues that if it's not on Scottish soil, then Scotland's laws are useless. This causes the war, and then the Irish and Welsh side with the Scots and drive the English out of England and across the channel to France. The Scottish retake the monster and elect a new Prime Minsiter for the new Scottish empire (The Scots habve taken England and now Scotland is the whole of Scotland and England, not just Scotland). The Prime Minster then clones geneticly modified War-Beasts from the Monster, and they march to war (Along with the Irish and Welsh) to take the rest of the world (I told you the leaders were losing their heads)
Basically, the world is falling apart, most of the cities in USA are baren and destroyed, the rest of the world is suffering under attacks from the Scottish, and basically you can be anyone in this ruined Earth, and form alliances to eventually attempt to restore sanity and justice to the world.
I thought of that idea as something other than the norm, what do you think?