I think it's pretty much guaranteed that the park (DHS) will close for capacity every day once regular opening happens for SWGE. DHS capacity is around the 75k, Disney is estimating 200k people a day to come FOR SWGE, meaning that it will instantly hit capacity before 10am.
This is why I'm already saving money for any type of paid preview. They did it with Guardians of the Galaxy Mission Breakout ($150) and Pixar Pier ($299)
If we are staying onsite and have a scheduled FP at SWGE would we get in if they are at capacity?
If we have a 6pm FP were aren't going to be there to get in at 8am.