If the voters of the district shall so elect that the district shall become a type I district, the district shall be governed by the provisions of this title relating to type I districts after January 31 next ensuing, unless the district be established in a city of the first class, in which case it shall be so governed after June 30 next ensuing, and the terms of the members of the board of education in office at the time of said election shall continue to and cease upon such January 31 or such June 30, as the case may be.
N.J.S. § 18A:9-8