If a majority of the voters voting in said election approve the proposition, then,
(1) Within 90 days thereafter the commission shall adopt an ordinance establishing the boundaries of the five council districts herein provided for and shall take such steps as are necessary to comply with the federal Voting Rights Act of 1965, as amended,
(2) Within 60 days after the referendum the commissioners shall establish the salaries to be paid to the mayor and council members to be elected at the first election held hereunder,
(3) Within ten days after receipt of notification of compliance with the federal Voting Rights Act of 1965, as amended, the mayor or other chief executive officer of the municipality shall give notice of an election for a mayor and all the members of the city council to be held not more than 90 days after the publication of said notice, and
(4) The municipality shall thereafter and as provided in this article be governed by a mayor elected at large and a five-member council elected from single-member districts, which shall have the same powers and duties as other mayor-council municipalities organized under Title 11 and any other powers and duties not inconsistent with this article which may have been theretofore granted to such municipality.