Let's be fair, to say that Zelda has gone downhill since Ocarina of Time is something of a tautology. After all, OoT is widely hailed as the greatest game of all time, so it's a bit cruel to criticize the subsequent titles for failing to best that mark, especially when virtually all of those titles (e.g. Wind Waker, Twilight Princess etc) have all been excellent titles in their own right.
I will say that I like the darker tone the series has taken. From a story point of view I absolutely loved Majora's Mask. Unfortunately it had the misfortune of releasing after OoT, which kind of killed it for a lot of people.
That said, I do think some reinvention is in order. However they need to be very careful about how they go about this. Zelda fan's have come to expect certain things, and failure to deliver on these things could result in a very vigorous backlash. If they decide to mix things up, I hope they keep their heads on straight. We want something like Metroid Prime or Resident Evil4 - something that reinvigorates a series while staying true to its roots. We do not want to see another Mario Sunshine, which despite its excellent reviews remains the only Mario game I wished they'd jsut take off into a corner and shoot.







