I have no insight to any of the numbers or anything, but from what I've seen, I think if I had to structure any change, I would stop having the Express pass add on cover every night the ticket is good. Maybe sell the Express add on and have different options at different price points...like one good for the first three weeks, if the person wants more, then a more expensive one for weeks four and five.
I imagine that gets complicated though.
I've always bought RoF, but we have never used it every night it was good for (we did come closer for 25 than any other year).
Anyway, I just hope I am still able to travel up once and get in at least four nights...I imagine if it got too costly, I'd try and save by staying offsite, which would cause my family to eat offsite more as well.
I really do not envy anyone that needs to find the right balance to keep the event's success moving forward/upward!