To be honest I didn't even realise this was the goal. Surely the larger issue here is the lack of genetic variance? Although, I guess you could take a herd of elephants and splice some woolly mammoth DNA into their genome and get the genetic variance that way.
To your question though, presumably they could slowly reintroduce them to the wild in a controlled way? If humans gave them everything they needed to begin with then gradually restricted their food supply, etc? Wouldn't they eventually learn how to be self-sufficient?
We know for sure they died out because humans kept hunting them and eating them. Humans seem less interested in hunting now, and though we'd pay lots of money to hunt these, some would be left over to continue the species.
To your question though, presumably they could slowly reintroduce them to the wild in a controlled way? If humans gave them everything they needed to begin with then gradually restricted their food supply, etc? Wouldn't they eventually learn how to be self-sufficient?