What jackskellingtonsgirl said does seem like something Disney would do....maybe have the ability to use the current fastpass system as an extra $10 or $20 a day charge for Disney resort guests, but included for free if you're at a deluxe. That sounds totally plausible. And then also have it as an add-on to the off-site guest magic your way tickets, just like the no-expiration and magic plus pack options, only probably more expensive per day than the Disney resort guest fee. Yes I could totally see that happening- it wouldn't require much change to the current fastpass system, only a change to the tickets. The only real questionable part then would be the APs, whether those people would have to pay a per-day fee to have the privilege, or whether APs would include it for a higher price.