Originally intended to conclude in December 2017, schedulers are now conceding that talks to reform the North American Free Trade Agreement will stretch into at least February 2018. While both the U.S. and Mexico were hoping to finish negotiations before their respective 2018 federal elections, impasses on key issues have forced delegations from all three countries to accept that additional rounds, of possibly longer length, will be needed in order to reach any agreement.
You can read more about this development here.