Many Bothans died to bring this information....
So, after talking with my insiders, WDI have planned ROTR to be opened later than the rest of the land for a while now. After having lots of problems, they knew they wouldn’t make the target date. The land opening way ahead of schedule was almost undoubtedly Iger’s handiwork as park attendance across the country has been low, plus the quarterly analysis. Likewise, operationally, they probably want to avoid a Diagon Alley incident. Simply put, Falcon has been very reliable in testing, but ROTR hasn’t been. From an operations standpoint, it’s going to be a nightmare to keep running before it breaks down, as well as the upkeep. They want to work out all the issues before trying to open.
That being said, if you’re visiting Disneyland late July, you may have a possibility of a soft opening for ROTR, but that’s one very big IF.