Since Parasyte: The Maxim (the anime/manga) is a completed story, "Part 2" is often a subject of fan speculation—imagining a sequel, a spin-off, or a thematic continuation.
Here is a feature presentation for a hypothetical sequel, treated as a major upcoming release. parasyte part 2
Here's a clear breakdown:
They view humans not as food, but as a labor force and biological raw material. They want to terraform the Earth quietly, replacing the human population from the inside out. Since Parasyte: The Maxim (the anime/manga) is a
Where Parasyte Part 1 was about the definition of humanity and the food chain, Part 2 is about Part 2 is about