This rumor scares me.  I have absolutely no faith in a Chapek-managed team being able to do something that doesn't damage the ride, thematically or emotionally.  Now, I think there is absolutely room to improve the attraction (the descent, in particular), but is Chapek going to do it right?  I see no evidence to support the notion that he even knows what "doing it right" means. 
If they ruin this ride (my favorite in the park), I think I'll be done with Epcot for a long time.