What was the capacity of the logs? Seems like a major capacity downgrade.
Im also worried this roller coaster is going to hurt the lushness of the hill.
As for themeing:
A lot of the roller coaster is straight from the survey.
Im thinking the backwards launch in the tunnel has to do with some kind of theme, maybe even an earthquake.
IE: Tunnel is filled with fog. Train rushes in, stops. Noise + water make it seem like tunnel is collapsing, so train rushes out backwards.
Onboard audio "we have no choice, we have to break through....YOLO!"
Rush into the tunnel getting sprayed with water to simulate breaking through a wall.
If there will be a new theme area, would be great to see some flat rides, something interactive light the toy story shooting ride (lights! sounds! energy!) and then something like indiana jones or spiderman 4d.
And naturally, the theme concludes with the building of the worlds first fully underground roller coaster, which is 90% dark. Some kind of mine/rock and roll ride. Donkey Kong country theme perhaps? Look for it in 2215.