change the diolog to voice acting

I would want to change the final battle part in twilight princess.

The ending to Wind Waker, they shouldn't go destroying Hyrule like that!

I would like to change the relationship between Link and Zelda, I would like to put some romance between them!

In tp as well!
In all of em!

Give them actual voices reading out the text not just noizes

hmm..how about if link was a girl?..i love the game but i've always wondered what link would look like as a girl.

being able to play more after u complete the final boss without starting over the game.

A boss rush game where you can do a boss rush of every zelda game, and it updates whenever a new game comes out. Other than that, a links awakening remake.

Two things - both of which have already been said!

Like heart-of_love said, the option to play as a female in more games would be cool (if Linkle had come into the series earlier), and like madelynsheldon said, continuing side quests and exploration after you've finished the final boss/main story.