It seems to me that their take is to do away with the River entirely - which I hope isn't anywhere near Disney's interests.The island is really not very large nor is it usable for an attraction (at least not without demolishing Rivers of America).
People don't seem to realize that our only chance at ever getting attractions like that again is actually just to not destroy the ones we already have. The Rivers of America, Tom Sawyer Island, the Swiss Family Robinson Treehouse, Disneyland's Submarine Voyage . . . Disney has no interest in building things like that anymore.
Current Disney almost never builds projects that encourage guests to slow down and take things in. That's time those guests could be pouring out cash in a gift shop or a restaurant. They'd rather zip you through the big, shiny, new attraction and then send you right back out to the next place you can open your wallet.
We should know better than to wish away the quiet, contemplative attractions we still have.