This. Hades and SOB just had a section of track replaced while the two examples above had major renovations with the track. I would also count the RMC renovations as new credits since the layouts were majorly altered from their original designs.
I wonder if Grona Land might look into the observation tower/roller coaster combo one day. Two rides in a small footprint would be great for a park like this.
From what I heard from Screamscape, Six Flags will be adding their own lockers instead of another company's, so they wouldn't have to share the profits with anyone.
Gerstlauer, with your founders being former employees of Schwarzkopf, is it possible to make new looping coasters in His style? (No OTSR's, vertical loops only, plenty of forces, etc)