So here is my thought: Toy Story Land is crowded, but demand will stabilize after the newness wears off and other attractions come on line. Pandora is an amazingly well done area. Even without the tie to the IP, anyone can appreciate what has been built there. Demand is still high and it would benefit from an expansion/additional attraction, but it can be enjoyed today with good planning.
Star Wars as an IP and land is in an entirely different category. It has 40+ years of history with a solid fan base across those years, and still growing. Demand for access to this land will never decline to a point where demand and capacity are balanced. Another attraction or two will not meet the demand or make the land equivalent in crowd volume to other areas of the parks. IMHO, a 5th gate is fantasy, given the overall infrastructure costs. The only reasonable answer I see is a larger scale version of the Universal Harry Potter model where multiple areas are somehow linked thematically to spread the crowds and add capacity. Even then, I think Star Wars will need to be on a much larger scale than the Universal/Islands of Adventure Harry Potter model.
Given the cost and design/construction timelines. Disney would be foolish not to have some rough ideas outlines for this eventuality. If they don't, they are really behind.
Am I overestimating the crowds/demand/endurance? Am I missing anything on the most likely solutions? It will be very interesting to see what crowds look like 6 month - 1 year after opening. I am not hopeful that delaying a visit will help in a really meaningful way with the crowds.
I did a search of lot of existing Star Wars threads/posts out there. I saw elements of this discussion in various places, but didn't see it specifically addressed from this aspect...forgive me if it has been covered or should be merged into another thread.