In 2015 oversaturation simply isn't a problem in any tech market.
Social media and the internet allows you to identify duds a mile away. Those who care will use it. Those who don't won't be causing a crash any time soon.
It's not a problem for consumers, but for indie game developers it may be. It's already hard enough making your money back with a 'good' game, the break even point could rise to 'great', with only 'amazing' games making decent money. Again, definitely not a problem for consumers but personally I don't want the video game industry to share the fate of the music industry.
I don't think Call of Duty is going to get wiped out or anything. Free to play phone games, though, for instance? Not saying I'm certain, but I could see it happening.
Social media and the internet allows you to identify duds a mile away. Those who care will use it. Those who don't won't be causing a crash any time soon.