Generations needs to be longer.Back in the older generations, making games took around 1 year or less.Nowadays, it takes years.If generations were to last only 4/5 years, a small company would be able to do only 1 or 2 games tops for each generation.Its just not enough time.
My (locked) thread about how difficulty should be a decision for the developers, not the gamers.
https://gamrconnect.vgchartz.com/thread.php?id=241866&page=1