There's a lot going on here. Here are my first impressions.
First, not only did they go up, but they are now also seasonally different---June and July are more than May at resorts with inventory in both months. This makes sense, May is very slow in Orlando, and peak summer is high demand for the Mouse in particular, because that's when the kiddos are off of school.
Second, the "premium" is now approaching a factor of 4. In May, they are 39/43/47. In June/July, they look like 43/48/??. Compare that to the rest of the Orlando area. In May, most values are 14 or less, the majority at 10 or less, with just a few larger Orange Lake units at 20.
Will this be enough to drive the RCI membership at large to "other" Orlando area resorts? Hard to say. The Disney mania is a powerful pull. On one side, you'll have the "only Disney will do folks", along with people with a surplus of TPU to burn. On the other side, you have a growing disparity of valuations; a lot of people go to Orlando to "go to Florida". For those folks, it will be increasingly hard to justify the premium unless they are spending the entire week in the Disney parks.
Finally, the mini-system behaviors seem to be the same, at least for Wyndham. The entire Orlando area is averaged, with the same Wyndham point values for a particular size and season for all resorts. When I get some time later today, I will try to post some examples, but the portals use the new Points-style search tool, and getting full listings is a royal pain in the patootie.
Ultimately, this isn't *that* surprising. Over time, you have to expect that TPU valuations will get closer and closer to open-market rental rates. And, a 2BR in summer, rented from an owner, will cost you around $3,000-$4,000 depending. Even at 50 TPU, with an "average" ownership that runs about $30/TPU, an exchange is still only about $1800 including exchange fee and Disney extortion fee. Is it the same great deal that it was before? No. Is it better than renting from an owner? Yes.