No, seriously, I hated that Tetra all of a sudden became this inert little character in Wind Waker. She was so cool... and then BAM, now she's completely boring.
But usually, Zelda isn't a typical damsel in distress, she's actually been shown to be pro-active in many games, even as early as LttP. Yet I don't think she can have an equivalent role as Link... that'd completely tear the legendary aspect out of the legend of Zelda. Whatever new way to portray her they find in the future, she should still distinctly represent the burden of responsibility and the triforce of wisdom, while Link, the Hero, through the triforce of courage, can face the more adventurous trials and challenges.