What if we got Phantom Hourglass/Spirit Tracks reconfigured instead?
spirit tracks needs a warp system. that's the main thing holding it back from greater heights in the zelda series. it would shorten the game a lot but that's okay. it would make it better.
i don't know if you can fix phantom hourglass. the game is super easy already. the sailing is boring, and the story is unforgivably stupid.