What
@Antinos said.
If it came from just about any other source, I'd call it unlikely that ANY coaster would be added the year after Pantheon. But the fact that BGWFans says
everything about the document checks out, and clearly shows a roller coaster (with a proposed height of
355ft) is monumental. "If its fake... it's the best damn fake the industry has ever seen." as they say. I did a little digging & tracking and found out that the picture of the station plan was taken recently (sometime this past week) in the park operations building at BG, so take that as you will.
As for the type of ride this could be, I would be expecting something similar to Red Force at PortAv. Before Pantheon came about, I'm pretty sure the park was going to add just that, starting where Drachen Fire once stood and crossing the river to where Pantheon is going. That plan got shot down and Pantheon replaced it.
Never in a hundred years would I have thought that both projects would happen, let alone in back to back years. But that seems like it's got a good shot of happening.