You might try a demo of Hyrule Market, since that hasn't been done yet. Although it's rather small unless you program in the shops and games...one might ask others what they would like to see in a demo.
This is an english website, please speak it.
!@#$% I lost my entire post, god dammit.
I think you would be better off trying to create your own din's fire effect instead of trying to imitate the one from OoT. That giant circle thing doesn't really look like a good representation of what it's supposed to be.
I voted other.Make it the part where you have to sneak past the guards in Hyrule Castle Garden then in the Courtyard to go see Zelda.
I voted Kokiri forest, since ...I don't know I just voted for it
instead of just thinking were to have the next demo, why don't you just work on making the game, like work on your games overall engine so it plays and looks nicer