Well, maybe some changes to the rules of the game to help encourage attacking and discourage camping and fouling.
Team fouls, like in basketball. After a certain number, some reward to the fouled team, and/or some penalty to the fouling team.
Can't see implementation any versions of the 3-second rule (penalizing camping) and 24-second clock (penalizing possession)- just too difficult on a soccer pitch.
Possibly some reward for the most attacking team in the first half- team with most shots on goal in 1st half gets an extra (4th) sub.
Maybe some scoring (fractions of a point) to reward attacking play, in case of draws (i.e. +0.25 points for most shots on goal, -0.25 points for most fouls committed, etc.).