What can renewed attention to an old project teach me?
Tyra Banks described renewed audience interest in Modelland, including people making their own interpretations of the work. The interesting part is what those people found worth doing. Study that before you decide that renewed attention means there's a business in it.
Collect a handful of public examples through permitted means. Note what people respond to, what they change and what they make for each other. Their words stay separate from your guesses about why they did it.
Look for the part of the work that invites people in. It may not be the part you promoted the first time around. A character, a premise or one odd detail can matter to a new audience in a way your original plan never anticipated.
Visible activity can look like demand and still fall short of it. Find out what people really want before you commission something new or promise a relaunch.
If you invite more participation, make the terms and the credit clear, and respect the people who helped the work find another audience. What you're after is how the work is understood now, so don't force the new response into the story you hoped to tell years ago.