We are considering this idea for the next Season #8 in Seasonal World.
A long, narrow world stretching from E0 to EXXX, which continuously expands eastward whenever a player approaches the right edge of the world. All players start in one of the leftmost initial sectors, E0N20–E10S20. Players earn seasonal points for capturing rooms located as far to the right as possible, based on their E coordinate. Once a room is captured, it cannot yield points again — players must keep moving east, creating a sort of “race” within the Screeps world. The winner is the one who advances the farthest. However, progress won’t be easy: rooms will be heavily filled with swamps, sometimes entire lines of walls will appear that need to be destroyed, and of course, there will be constant battles with other players.