Alright, so a few hours before the announcement and my guess is Holiday World will be building a Proslide Hydromagnetic Mammoth water coaster, which is the next version of the LIM powered waterslide and features a 6-person "Clover Wheel" tube. Paula claimed on Facebook they would be breaking a new record and giving up and old one which could be world's longest water coaster. Also, Dan Koch comment it was named after an extinct animal (Mammoth? Saber Tooth Tiger? Dinosaur?). The construction location is next to Wildebeest so I think this makes a lot of sense. The ride debuted at IAPPA 2010 convention in Orlando, as can be seen on Theme Park Review.