We should be able to forcestart games by voting, such as if half the people in a lobby vote to start, then the game starts. I think this is the perfect solution to an issue I myself had been having recently where not enough people wanted to play. This lets big amounts of players play, AND allows 2v2 at the same time!
We're going to add map voting as well as voting to start the game. This requires a lot of work, though.