[Lady Katastrophe]

The way I would have done it... Have Kat steal the Zeo Crystal at the beginning of Zeo. She would corrupt it and use it to overthrow Zedd and Rita. She would take over and declare herself Lady Katastrophe. But Trey would come and give the Rangers the Super Zeo Gems so they could morph into the Geo Rangers and use the Super Zeo Zords. Kimberly would rejoin the team and become Pink Ranger again. She would get together with Tommy. Although Katastrophe would target them. Still the Rangers would successfully stop her plans.