The plan from 1982 has failed. Wolf population is low and stagnant-
The prominent conservation groups are petitioning under the Administration Procedures Act for the U.S. Fish and Wildlife Service to meet it legal obligations to recovery the Mexican wolf (with a new plan).
As David Parsons of the Rewildling Institute has said this has become a put and take wolf program. His group is one of the petitioners.
Here is the news release with a link to the petition.