Luckily I downloaded the demo as soon as I saw an article about this, because I know that publicity is the death of these kinds of projects.
It's awesome, and I recommend that you continue to work on it. But you'll need to change the name, change any references to Zelda in the game (the Triforce, the music / sound effects that came from Zelda, call the heart pieces and containers something else, get rid of the "Buy something will ya" quote, etc.) and release this game as your own creation. It's good, and being LIKE Zelda isn't a crime. But using their intellectual property will get you taken down every time. People buy and play Zelda-like games all the time, and there are even lists of the best Zelda-likes. You've just gotta make sure it's not infringing on copyrights and trademarks.