It's pointess to talk about less games, it will never happen out of 2 reasons.
1. Football is first of all a business nowadays and no businessman will decrease his income
2. Even if they agree to reduce games, no one would actually agree to cut his own competition, because of point 1.
What Fifa will do in the future I expect is to allow bigger squads, more players on the bench, more subs. The money must continue to flow, so expect like 7 subs and 3 players more on the bench in the near future. As a result, the games get even more generic, nobody will care about them 2 days later, the quality will continue to decline. That's the future of fooball.
But fans have only themselves to blame, because they continue to finance this shit show.