Although the NRC was barely 4 years old at the time of the accident, some called for the abolition of the agency in favor of an agency run by a single administrator. President Carter stuck with the Commission form of governance, but issued a Reorganization Plan in 1980 that enhanced the power of the Chairman in NRC's emergency response functions. Improvement in emergency preparedness and response was one of the lessons learned from the TMI accident. Here's an information brochure issued by Pennsylvania after the accident:
Three Mile Island Unit 1 continues to operate today.
But I doubt we will see this wag's prediction come true for Unit 2!