Personally, I'd prefer to see a Critter Country. We didn't get a Critter Country because back in 1992 it was too cold most of the year for Splash Mountain. Well, in the last 25 years things have changed with each years passing becoming the new 'Hottest year ever!'. Even when I went back in September it was freezing and it was pouring it down with rain, and yet, people were still queuing for Autopia and BTM. People didn't mind getting wet, it didn't spoil the magic for them.
Splash Mountain would work in DLP now, in my opinion! Worth noting that Tokyo isn't too much hotter than Paris...