I’ve known of the “slug parasite” for a while :P and I’m somewhat familiar with Murahachiro’s work on animations featuring this.
Now to answer your question on how does this fare with Insect Prison.
Currently, we have nothing planned regarding this, however, it is possible to have an infected slug scene, in the distant future, that also infects Leah.
Given this, some of the content around this parasite is somewhat extreme to our tastes so those physical transformations with eyes popping out and all of that will not be part of the remake, at least not from us.