I'm looking for a suitable word.
A parody is a work that references some other work by making fun of it, usually having similar setting and characters but comic outcome.
What if the referencing work is not intended to be funny? For example, I'm just reading a comic clearly referencing some other comic but turning story originally intended for kids much more realistic, gitty and simply gruesome. Is there a word in English describing such a work?
Edit: After reading a few suggestions I noticed one subtlety I intended to express. Just like in the case of parody I'd like to indicate a sense of discussion with the original work. It's something I have an impression is missing in case of remake or rework.