I really wonder if they'll just scrap Avatar entirely. Fire and Ash just didn't do as well as its predecessors. I really don't want them to fall into the same trap as Galaxy's Edge and Marvel. In the late 2010s, Marvel and Star Wars were all the internet could talk about, Marvel especially was the biggest thing in pop culture. Now the hype is killed entirely. They are building the Avengers E Ticket 8 years too late. Yeah, they're trying with Doomsday and other Star Wars spinoff movies but I really don't think it will amount to much.
At least they were smart building Cosmic Rewind at EPCOT the way they did. One day when Chris Pratt doesn't begins to look 30 years older than when he recorded for the ride, it really is an easy swap for another IP.
Anyways, Avatar can't really compare because it is strictly a movie that relies on so much CGI to mask what the actors look like. But as far as I'm concerned, the Avatar hype died a while ago. WDI is just developing these concepts too late.