Posting this in the appropritate thread:
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According to this rumor, New Orleans would take over the western side of Frontierland, and Liberty Square would manifest its destiny westward. Big Thunder Mountian would be absorbed into a new joint land with Coco, which would transition to a more forested Encanto area before entering a villain's land that would terminate at Haunted Mansion.
Perfectly, this sounds like a perfect plan to me and the perfect execution of the overarching idea.
Very excited now, especially since this seems to be far less blue sky than previously suggested.
Additional useful post to help visualize the space, especially with how big it is: