I hate to be the Debbie Downer, but this all sounds like click-bait (kind of like the ‘story’ from the same soruce about Disney permanently closing the iconic slides at Blizzard beach – which re-opened from repairs days later).
I don’t think anything GOTG is on the horizon for WDW because of Avengers: Infinity War. From what I’ve hear/read, once the GOTG characters are in a film with the licensed-to-Universal-Orlando-Marvel-Characters (Hulk, Spidy), Disney can’t use the GOTG characters in a theme-park east of the Mississippi.