Yes, this seems to be the most current news. They did consider taking part of Tomorrowland at one time. And this is why I feel like they've considered doing the same for Orlando. The only reason it didn't "work" for me is that I have a hard time seeing Luke Skywalker in the background of Tinkerbell's flight. But, I've realized that Disney's strategy might involved creating a theme for Star Wars where this makes more sense. Space fantasy, if you will.
The Brad Bird film does set the stage for a future world rebrand, which makes sense on paper. I do think future world needs something like this to reinvigorate it. I doubt the film will do exceedingly well, but if it generates a sequel we could see its themes brought into the park.
I don't think Disney will move on anything big now. I imagine Star Wars, like you do, as deserving of it's own gate. Why put millions into a miniature land in DHS, and then be stuck wanting to do more. Well, I guess there is space there for expansion. Still, we have to see exactly how well new Star Wars is received (how many toys are purchased, how long the meet Chewbacca lines become).
Which is why I think we have yet to hear any details about Star Wars expansion in the parks as of yet.
The news of the Brad Bird film's presence in EPCOT is a huge clue to me that Disney might be considering this kind of realignment. But I would agree that any such idea would be wishful thinking on the part of executives about the success of various franchises.
As for DHS, leaving Star Wars out of it makes room for Marvel (Big Hero 6) and other properties.