When I spoke to a DVC sales staff they suggested that SSR and OKW would be treated as "sister resorts" with OKW members having access and being encouraged to use SSR's pool and the spa. I can see that perhaps that would be a temporary "marketing" ploy to get OKW members into the resort in order to make them think about buying points there or maybe it was just to get the spa better known and used (P.S. it's a very nice facility).I think it is to keep OKW folks from using SSR's new pool/slide when it opens. I can see DVC ending pool hopping to another DVC resort but maybe allowing hopping to non-DVC resorts.
I very much feel that DVC pool hopping is a very minor contributory factor to any hotel pool's over crowding (regular guest at other WDW hotels would rank at #2, people not even staying on WDW would be a run away winner). It's also a factor that's easily controlled on "busy seasons" as well as individual days. Disney could easily (and cheaply) put into place practices that keep out unwelcome pool crashers while still allowing DVC members access ( under certain circumstances).