DLC idea to Amnesia: A Machine For Pigs

[DamnNoHtml]

However, I can imagine that DamnNoHtml will undoubtedly try to make some sort of continuation, such as what he did with Amnesia: Through the Portal.

Pretty doubtful. I barely see AMFP as a sequel to Amnesia. The very brief connections involving Alexander, vitae, and the Orb I feel were just there to say "Hey this is Amnesia related guys." I still like AMFP, but not as an Amnesia sequel.

Sequels don't need the same character and setting - more a continuation of the themes, style and same broad framework (Lovecraftian horror).

I think a lot of people were wanting more of the same, rather than something new.

That sounds more like a spiritual sequel (Like Ico and Shadow of the Colossus). Same world, same themes, different characters.

In most cases, sequels further an already existing story, not make a completely new one with very, very few references to the original story.