The parabolic negative airtime hills would not be recreated in the USA in today's climate.
A rebuilt Big Dipper would resemble the original as much as Kings Dominion's Grizzly does Coney Island of Ohio's Wildcat or Canada's Wonderland's Mighty Canadian Minebuster does Coney Island of Ohio's Shooting Star--which is to say almost not at all.
Geauga Lake itself had the prime exemplar. The Raging Wolf Bobs was made of wood and had coaster trains that ran on steel wheels on wood track. Otherwise....the Riverview Bobs recreated? No. Just no.
And some places won't even allow any grandfathering regardless.
In any event, some laws and regulations, like the ADA, have no grandfathering provisions anywhere in the USA.