The nice thing is, I think the Roxor parts are interchangeable with the old CJs. So people restoring the old Jeeps have a new supply source. Maybe the Thar has some compatible parts for the TJ. Or something crazy, like being able to direct bolt in their diesel. Who wouldn't want the option for a new diesel drivetrain that direct bolts into any 4cyl TJ? Selling aftermarket parts FCA doesn't produce wouldn't violate any trademarks or patents.
As to quality, well they're probably the same as any other new car with hundreds of parts sourced from the lowest price vendors around the world. I'd buy one if they sold the Roxor for $10,000 or the Thar for $15,000 here in the states. That's almost the going price for a worn out TJ.
Mahindra should have purchased Jeep instead of Fiat. They seem to understand the Jeep concept better. FCA should have teamed with them to build the old style Jeeps around the world, branded them Jeep Mahindra for the publicity, and got free money from Mahindra for each sale; while expanding the Jeep name everywhere. It seems FCA could have made money on a deal instead of wasting it on lawyers.
The US market for these is probably small because we like power and luxury, which these are neither. So they are not a competitor to the 4 door sales. Maybe they sell to high school kids as a first car due to the low cost, which would might have hooked a generation on the Jeep brand. They'd sell well to farmers and ranchers at the lower price point if they were street legal. And Mahindra is going to sell them worldwide regardless of FCA.
I think FCA made a mistake.