Those other parties are coming regardless, and despite what some here might think. None of those regulators can stop it.
We have a pretty long history of how MS and Sony get along in the console space. In many ways, Sony and MS are like siblings. They fight with each other fairly often, but make no mistake. If any of those other companies tries to come in and bully the market, MS and Sony would absolutely work together to drive them out.
If this deal were to fail, Activision won't suddenly not want to sell. You'd just have to take your pick as to who would buy them. So who would you prefer?
Looking at the big picture. The gaming industry is the process of these giant (mostly) tech companies attempting to take over. Not too dissimilar from what segments of the auto industry is facing. These giants are going to come in and squeeze