Conmebol have put forward a proposal to FIFA arguing that the World Cup should take place every two years rather than four, president Alejandro Dominguez Wilson-Smith has confirmed.

While there have been discussions about expanding the Uefa Nations League to South American countries, and the latter are open to that, the federation chief has put on the table an alternative suggestion that the World Cup changes its cycle.

https://www.reporterswall.com/2018/11/25/fifa-considering-making-world-cup-every-two-years/

good one

It is not possible considering the huge cost of staging world cup

Two years will take away its prestige.

Players typically have three world cups to play in their entire career so they always bring their A game to each one.

Two years makes it look cheap.
Foolish players like Balotelli that have thrown their careers away early will feel confident of winning one if they pretend to get their acts right at 29.

I'm against this.
Four years should remain.