I did kind of derail the discussion in that the time it takes from empty lot to building a land within an existing park. I understand your rationale. That was my fault.
My initial gripe was Disney announces these projects at D23 and calls them Blue Sky and announces them way too early. and it will be many years IF anything opens to the public.
I have resolved myself to totally ignore these announcements as they will most likely not happen, but for others it may set expectations.
As a fun exercise, the clock started back in Sept. 2022 for beyond thunder as that was when in was announced at D23, and then RE announced this year, so lets see how much time passes before whatever they try to do back there actually opens to the public.
Given its (more difficult, thank you) to build a new land in an existing park, I say it will take 7 years, from breaking ground whenever that is going to happen and we have no idea when that is going to happen. Having said that, I will guess, it will open about 8 years from now, if it happens at all.