If Argentina had not won this just concluded edition of the world cup, it would have been difficult to win this upcoming one with the more teams they will have to play. With the increased matches each team will have to play, Players will get more fatigued, and the chances of injuries will be higher in the competition. I do not know who brought up this idea, but I hope they already have a plan to make it work because for the period which the competition will hold, they will be a lot of rowdiness.
As far as I know Fifa will increase the maximum of 1 match for the team to be champion
Instead of 7 games as usual, it will be 8 games in total.
The group stage will probably have the same 3 matches, what will be different is the group format, and the new 32-team stage, instead of the round of 16, will be round of 32.
Probably 12 groups of 4 teams
Will be classified the best 2 teams of each group + the best 8 3rd places = total 32 teams
Very weird format, but this is acceptable and viable to have 48 countries participating