Looking around, I'm not opposed to a family coaster. Since heck, if it's a B&M family invert, you could certainly play with homages to Big Bad Wolf here and there.
So as it stands now--the BGW 2025 coaster is not looking to be a Giga Drachen Spire. Nor is it a Hyper RMC. Nor does it seem to be a proper "thrill" coaster, from past statements.
What could this be? Speculation/Rumors have put this as...a B&M Family Invert, or something of that intensity.
The main issue is the location, Festhaus Park is really tucked away in the back, and I agree with others it would be better suited having a bigger attraction to draw people in to walk over there. I don't think a family coaster is gonna' be the kind of draw an attraction needs to be for that area.