What will football look like in the future?

Here’s a possible angle to approach this from:  Sports has become increasingly objective.  With cameras from every angle and even sensors inside goalposts and such to be able to review plays or know the exact location of the ball at any given time.  The idea, I think, is that sport is a way to see who truly performs better, and the answer needs a precise answer free from human subjectivity.  So maybe in the far future, they will have a truly subjective sport and let’s assume that this sport happens to be football.  Now suppose there’s a shift in perspective and people now don’t care about the objectivity of sports and instead want to embrace subjectivity in the rules and play.  So given a perfectly objective system, how would you introduce subjectivity into it?   (And also, if games are done like this, does that make them an art form of sorts?  Do we need artistic sport critics?)