OK, I am new here and this may have already been posted somewhere along the lines but this is what I understand about Pirates (heard at the NFFC convention last summer) . . .
The Imagineers are looking at refurbing this ride for a new night advernture. In the daytime the ride will be as it always was and that which we enjoy, but at night the ride becomes a whole new adventure. At the Pirate Ship/Fort battle scene, instead of turning right into the village scenes you would go onto a different set of tracks to the left (left of the fort with the shadow fighters dueling). You would then visit scenes which are more ghostly (ala the Moonlight walk in the movie) and scary.
Imagineers have already been backstage to measure space, etc. There will reportedly be a sign that lets parents know that the ride at night is scarier for small children.
Anyhow - I have no idea what the Imagineers have in mind but it sounds liek a great way to incorporate new ideas with still keeping the original ride intact!