but their genetic roots are way beyond gone.
I disagree. Their genetic roots are still alive and probably will remain so for another 2 years.
Land Rovers are in a commensal relationship with a limited subset of humans. Over time their native environment has been shrinking and the Rover gene pool has been mutating to try and find a better commensal match with more humans.
In North America, the regulatory aspect of the Land Rover's environment has changed to the point where the genetic rootstock Land Rovers can no longer reproduce. Only the genetically mutated Rovers who have adapted to fit new niches have been able to continue breeding. The newer mutations can no longer successfully form a commensal relationship with the subset of humans that the genetic rootstock Land Rovers do. That subset of humans in North America who are not bonded to Land Rovers have largely formed pair bonds with Land Cruisers or jeeps since root stock Land Rovers have become increasingly rare and less well remembered.
Unfortunately the economic element and other factors that control the reproduction of Rovers is rapidly changing to the point where the original Land Rover gene stock will be unable to reproduce anywhere in the world.
In order to compete in the ever changing environment, the Rover gene pool is evolving far enough from its original genetic stock as to be virtually unrecognizable by the subset of humans the original Land Rovers interacted with. Which means that the new Rovers can not form commensal bonds with Land Rover's original market base.
As I see it, the specialized subset of humans that bonded with the Land Rover root stock have 3 main options:
1. Adapt to the modified Rover gene stock. This basically means driving mostly on paved and maintained dirt roads to extend the new Rover's life span and be prepared to deal with a Rover that has an expected lifespan of only 10 or so years.
2. Adapt to form a commensal relationship with one of the other marques that have out competed Land Rover in the North American environment
3. Find or import a genetic rootstock Land Rover and maintain it so that it keeps on going and fulfilling its part of the commensal relationship. Though genetic rootstock Land Rovers require a lot of maintenance they are simple enough to be maintained indefinitely.
On the other hand, the genetic side branches of Rover, such as the Range Rover classic and the Discovery have evolved to be too complicated to survive longer than 15 to 20 years and will likely be gone from the wild in a few more years. While the Discovery and Range Rover enthusiast will mostly keep them until they die then move on, the Series and Defender enthusiast will likely just keep on replacing parts as they wear out and stay out in the wilds.