Producers of the action-adventure series “Hercules: The Legendary Journeys” and “Xena: Warrior Princess” are leaping into the future for their newest creation. Her name? “Cleopatra 2525.” The half-hour show — featuring the exploits of three women in a world turned upside down — will premiere in January. It comes along just in time to replace “Hercules,” which will wrap up its run in syndication due to the imminent departure of its star, Kevin Sorbo. Gina Torres, Jennifer Sky and Victoria Pratt will star in “Cleopatra 2525.”