I see it exactly the same way as you. People paid very different prices from one resort to another and the same for the different seasons, sizes of units as well as view. There is no way that they can disregard this all of the sudden and reservations are made on the first come, first service basis from here on with the point system.The reason I brought up Disney's future problems with RTU contacts expiring isn't to say that it would be a bad idea for Marriott to use Disney's template as an overlay exchange system, but rather to say that every system has its good and bad points. I think Disney is a very good example of how Marriott could roll this out - DVC points are connected to a home resort and they cannot sell more points than what a particular resort's intervals will support. If Marriott did implement something like this then it could be a simple points overlay system for exchanges rather than a trust system, which appears to be the most difficult to marry with a weeks-based system.
Disney does somehow manage to equitably handle their inventory between owners staying at their home resort on points (with a reservation priority over owners of other DVC resorts,) owners staying at other DVC resorts on points, owners staying at Disney hotels or cruise line on points, Disney-processed external exchanges within RCI, and cash rentals split between developer-held points and owners points deposited for external exchanges, all the while keeping resale values stronger than any other timeshare system's. What's to say Marriott can't manage to do the same thing, except that Marriott will also have to equitably manage "legacy weeks" at the same time. It can be done, I'm convinced of that, and at a certain price point it will be seen by weeks owners as a fair value. We can't know what that price point is for us individually until the details are made available, but I don't think that a person has to go solely on blind faith in order to think that there's a possibility Marriott could be doing something good here.
There has to be some type home resort priority because of the big price difference when you bought but not for making an internal exchange to another resort. It has to be like an overlay over the old system. It's too complicated for me so may as well wait untill they finally announce the new system.
Do people, who do not convert, eventually are at a big disadvantage? That would be a big worry and people are not going to be happy about that because the system was changed after 20 or so years and nobody expected that this could happen.