There won't be any further negotiations. Obama will simply run out the clock on this for the balance of his term and remind us of his previous victory with Iran and retire to a comfy existence.
What a legacy he will have. Debt, Iran, ISIS, immigration, Obamacrap, his incompetent administration and using every agency in the federal government to promote his perverted agenda. Many good books will be written by others. Should provide years of tears and entertainment.