Hollywood isn't out of ideas, they just don't have any balls.
They get tons of scripts with new exciting ideas but they often pass on them because it's easier to stick to a formula. Occasionally one studio exec will have the balls to take a risk and try something different but if it's a success every other studio just tries to copy what they did.
Everybody says that, but the fact is a lot of those ideas are shytty ideas. They have marketing people who understand how people (Americans) think, there's a reason most of those scripts don't get made into movies. They suck, or Americans won't get it. Indie movies come out often with some of those ideas you're talking about and they rarely make any money.
they need to hire this dude asap