I think a 2v2v2v2 would have been more exciting. Four teams, 2 players per team. It could've been called "Lovers' Quarrel", or something equally cheesy. I also think it would be cool if there was an option to have a 2 player team take on a lost sector with double the amount of enemies and a time limit to successfully loot it for extra rewards and experience. This is just an idea to create a new gameplay opportunity without having to create entirely new content.