I'd love for WDW to get a longer, take-your-time dark ride filled with big sets and animaronics like Tokyo's BATB (I think it looks beautifully crafted)... but I also agree that Imagineering seems to have fallen into a lazy-ish story template for many of their non-thrill dark rides.
There are exceptions (Na'vi River Journey and Runaway Railway immediately come to mind, but those are also polarizing attractions), but to a certain extent, we seem to be back in a "book report"-style place for these rides (even when they're technically supposed to be "sequels" to the movie, like Frozen Ever After).
That said, I want to see what the Fantasy Springs attractions at DisneySea look like in this regard. I have every expectation that they're going to be wonderful dark rides.