Unfortunately, as the costs increase, the willingness to take risks decreases, particularly in publicly traded companies. That causes the diversity of content to decline as well. It's an inherent flaw of the AAA model that is difficult to escape. Consolidation among big publishers won't fix it. The only exception is CD project, who are taking a big risk on Cyberpunk 2077. They are going the other way, by backing themselves to make something special and putting in the time, effort and money necessary to do that. They can only do that, though, by having owners who aren't knocking on the door every other month asking 'how much money have you made?'. Companies with many shareholders don't have that luxury.