My friend suggested this .. won't happen but what do y'all think. 2 different ideas. 1stly: The 3rd placed team gets an automatic place in the final. The 5th and 6th placed teams play-off, the winner gets to play against the 4th place team. The winner of this match gets to play the final against the 3rd place team. This way finishing 6th will still be desirable but there is also an incentive for finishing higher up.
2ndly: They switch the play-offs to a round robin, with everyone playing each other once at neutral venues. The 3rd placed team start on 3 points, the 4th placed team start on 2 points, the 5th placed team start on 1 point and the 6th placed team start on 0 points. Then, the top 2 play off in a final.