Too small for black lake, unfortunately
I thought this exact thing. Especially with all of the work happening right behind it; and what appears to be access from other aspects of the train station.
That left opening on the train station would allow you to funnel straight into this area; if it were to be more than "just" a coaster.
I also thought they were going to save some room for future expansion, thinking there was no way they would be able to use all this room for just a singular ride- but I'll be damned- it looks like they are going to use it all.
This is either going to be:
A) A very long ride for a coaster
B) Be more than just a ride and have more expansion than we thought.
I'm hopeful for B. That much room would be a shame to use for a single ride. The caveat being, if they do, at least it will be a monster of a ride.