I also think it's a bit too early to speculate on the details, especially since we're still relatively early in the construction phase of Star Wars Land and MaxPass hasn't been launched yet. I think we might see similar situations as when Pandora first opened, where there was a line to enter due to capacity. You were able to bypass the line if you had a FP for one of the attractions from my understanding. Maybe this is where the Star Wars Land rumor is drawing from.
On another note, I don't think any price is going to detour people from visiting Star Wars Land, especially when it first opens.