I don't think they're necessarily trying to make people think Boulder Canyon is a new name. I think a lot of people at the park recognize it as a homage to the former Raging Rapids ride. Also, you might want to double-check how you spell the word "shirts" 

It does seem odd that Holiday World likes people to think the Boulder Canyon area name is new when it really is not. Boulder Canyon area housed the Raging Rapids ride from May 1990 until June 2023 when the park removed it. While the rumored water coaster may be new for the area, the area name is not. You can still find the old area t-****s on clearance for Raging Rapids in Boulder Canyon in their gift shop (which I found this past weekend) that am sure may confuse some when looking at the posters on the walls for what is coming soon.  

The master plan for the expo center calls for the road to be removed at some point during the renovation. I seem to remember that the parking lot between Kentucky Flyer and the hotel is supposed to be for the parks use at some point, as well as the vacant land from the stunt show amphitheatre down to the main road and freeway exit ramps. 

I hope that’s not the direction they go.  The water park is already large for what the park is.  Really all they are missing is a water coaster since Deluge left. Something I just now thought about as possible (speaking in fantasy of course), is the removal of Mt. Slide Hai.  It’s very old and removing that wouldn’t create any new gaps that haven’t already been filled by Plummet Summit and Wikiwiki Wai slide complexes.  Doing this (along with castaway creek) would also allow them to make a large continuous block from discovery meadow all the way back to where T3/Rapids were. I really don’t know what else they could add to all that land for the waterpark that it doesn’t already have, and they definitely aren’t going to out “water coaster” Holiday World, so not sure what the payoff would be.  I guess it depends if they want to push this into a Dollywood style park or just remain a local family attraction.  Time will tell! Exciting times!

I feel like the best major investment for the T3 and Raging Rapids area is to move the rest of the waterpark there. Kentucky Flyer is so far out of the way from the rest of the dry park. If Herschend has the ability then they should do what they can to close the gap in KK's dry ride layout. That's probably easier than removing the road that divides the park in two.