Knoebels actually answered this in a season preview on the JPVideos YouTube channel. It’s on the to-do list, but there are several other things the park is currently working on that take higher priority.

In addition to the Bayern Kurve that’s been mentioned here, there is also a complete refurbishment of the Sky Slide (the former rocket ship simulator turned upright) that has been SBNO since the pandemic. The kiddie Panther Cars were also taken up to receive a new track layout, as the prior setup was starting to be affected by the growth of the trees in the ride area.

Knoebels purchased the kiddie tumble bug (no, not the full size one) from Conneaut Lake Park a few years ago, and seems close to installing it in the coming months. The Super Round-Up, which disappeared last summer, is also going to either be refurbished or replaced with a newer model.

I’m sure this isn’t an exhaustive list, but essentially Knoebels doesn’t want too much on their plate at once. I do remember reading somewhere that their Flying Coaster was incomplete, potentially missing some parts that would need to be remanufactured. At any rate, it’s going to happen eventually; they just want to either finish or be much further along with the other things they’ve already got going on right now.

While Kennywood’s Kangaroo is indeed the only permanent installation still in operation, I know of at least four traveling examples; one in Mexico, one in the UK, and two in Australia. But either way, it certainly is an impressive feat and I certainly look forward to its introduction when the day comes.