I just had a shower thought: The name "Splash Mountain" was always disconnected from the theme of this ride, and it has become a very iconic name. I think it will return some day. They're giving it a new name for now, to underscore how the ride has been refurbished, but I would not be surprised if it was rebranded as "Splash Mountain: Tiana's Bayou Adventure" within a couple of years, and then dropping the subtitle entirely a few years after that. Until then, Disney will probably have to deal with thousands of confused tourists asking where the entrance to Splash Mountain is, because they see the iconic attraction from afar but can't find the name on the park maps or signage.