I don't think they are out of ideas. I just think the signal to noise ration is simply too low. Great, Original movies get made every year, and "Hollywood" is responsible for a lot of them.
The studios even take a loss on Projects that have greater "artistic merit" on occassion. Obiously there's a selfish motivation here, as the attention garnered for any awards won brings greater prestige to the studio but in the end, they can afford to take the loss precisely because so many people blow so much money on the pop-corn summer blockbusters.
I'm happy with both sides of the aisle, popcorn and art.
-Sik