Will man ever run out of ideas for entertainment?

I realize it's an odd question, and unfortunately, this is sometimes how my mind works. I think of rather morose concepts and dwell on them. However, this one's been bugging me for quite a while; I figured it may as well be a decent idea for discussion (hell, a good number of you have probably thought the same thing already):

Will mankind ever experience an absence of potential for creation in the world of entertainment? Will every song soon be composed? Will every script be written? If so, when would you guess these to occur?

 Note:

Half of me didn't want to post this, as I don't know if this will cause others to dwell on it like I do. The last thing I want to do is make people depressed.