There are no morphin sequences or zords outside of the opening credit sequence.
This is the final appearance of Lord Zedd's chamber of command. The palace and Rita's observation balcony would return 27 years later in the 30th anniversary special.
Rita and Zedd would have truly earned their victory if the Machine Empire hadn't arrived. They spent three years fighting the Rangers and finally rendered them powerless.
This is the Seson Premiere