While we're on this topic, it would be a good idea to point out just how things like rumors can only be speculation, even after a project is greenlit, it still may never see the light of day.
The top imagineer on a project could come here and spread rumors about a project actually happening and the next day it could be canned for some reason.
One of these examples of something that went WAY past the greenlit stage and never completed is the Pop Century Legendary Years. It's a constant reminder of how outside forces can change even the completed plans for a project.
So while we site here discussing how off-the-wall some rumors are, or how they'd never happen, much of it could be green-lit or in full planning stages and still never see the light of day. That doesn't make the people spreading the rumors any less useful, it's just that they have no control over the final decision making process.