Before the expiration of said one-year period, the town shall, upon its initiative or upon the request of the homeowners' organization responsible for the maintenance of the common open space and improvements, call a public hearing upon notice in writing to such organization or to the homeowners within the development, to be held by the town council, at which hearing the organization shall show cause why such maintenance of the town shall not, at the election of the town council, continue for a succeeding one-year period.