So says this dev---link
I agree that games are very similar lately. Not all, but most.
Here are some of his quotes;
"I think we should have more courage in our industry and take more risks, because I think this is what the industry needs now," Cage said. "I mean, how many first-person shooters can you make? How many monsters/aliens/zombies can you kill in games? There's a moment where we need to grow up. We need to grow up."
And another bit;
This is not the first time Cage has called on the industry to branch out. Last month, the developer claimed the industry would die without innovation, further noting that while shooters will "always be successful," new ideas will benefit the business.
I really agree with the second statement.