Mamoosh said: And the ironic thing about Montu is that they had to build up the earth to create the trenches
...and god bless them for that. The most thrilling part of the ride for me would have to be the head on collision with the wall in the trenched corkscrew. Nothing quite like running straight at a wall only to wingover in the nick of time.
Coasterman Mike - who is hoping for a straight dive(Kraken) instead of the banking first drop(BKF... err... Dominator)
When saying "below ground" they could be referring to that Hercules was positioned on a hill and if it went down in that area it would be going below the ground lvl of the higher area of the park (talon/entrance)
Most likely the station will be built on the same high/ ground level as Hercules' station once stood and most likely the ride will descend off to the side of that hill on a couple occasions, thus below the ground level (at which you entered the station)...