Having more E tickets and Ds would bring more people so I’m not sure that is what you want. Kidding aside I think more capacity is a good thing but not all new rides built will have it therefore making crowding worse.
I am VERY interested to see what their attendance increase is for SWGE. NO way it's like what Universal got from Potter. Although I guess folks think teh Disney TEA numbers are no right anyway.
I really think all it will do is cannibalize other parks. It can't really sell more rooms, they are almost always 95%+ full. It could sell more non Disney rooms, but those people won't have a prayer to get a FP+ at WDW.
At DisneyLAND I could see them getting a decent uptick from locals. But again, those folks go anyway, and it may not end up as more tickets sold, just more passholder visits.
They are so busy already, if they DO get any significant increase resort wide, it will be simply awful.