I think they should add two new game types: Doubles Terminator and Doubles Assassin.
In doubles terminator, each time a team is eliminated, the person who eliminated the second player on the team (thus eliminating the team), and the partner of the person who got the elimination, would be awarded the same number of points as they would if they beat the other team in a regular elimination game. For example, let's say there is an 8-player game with
Team 1: players A and B,
Team 2: players C and D,
Team 3: players E and F,
Team 4: players G and H
Suppose player A gets eliminated, and then player C eliminates player B. Players C and D would both get the same number of points as they would if they won a 4-player doubles game against players A and B. This would only be allowed in 6- or 8-player games. If it were allowed in 4-player games, then that would be the same thing as the 4-player doubles games we already can play.
Similarly, in doubles assassin, each team would have to eliminate a specified target team. Using the same 8-player scenario as before, team 1 would have to eliminate team 3, team 3 would have to eliminate team 4, team 4 would have to eliminate team 2, and team 2 would have to eliminate team 1. Whoever succeeded in eliminating their target would be the winner. The game would end when both players from one team had been eliminated, and the winning team would be the team who had them as a target. Of course, targets would be randomly assigned. This would only be allowed in 6- or 8- player games, because if it were done in a 4-player game, it would be the same as a regular 4-player doubles game.
I think it would be a lot of fun to be able to combine team games with the terminator and assassin game types.