A couple of things:
I think the clues are for the general public and the highlighted letters "R" and "C" are a nod to us enthusiasts.
If and I emphasize IF, Congo Rapids is removed I think they will reuse the current queue for the new ride (coaster).
I also think LTSP will be revamped and not removed, with the possible removal of Congo Rapids there would be no need yo use the LTSP area for the new ride.
If it's not a coaster themed to the Jersey Devil, I'll be shocked, and at a loss of words for what they're doing In 2020.