We can't say with certainty that this is related, but it turns out Mark Aaron James is going to release a followup of the song called Batman's Reply. It's pretty exciting to think that Spiff and the WoW community could thus encourage an artist to create a sequel, so I think that's the version of the story I'm going with.
For what it's worth, my favorite bit was watching Spiff translate my favorite superheroes into WoW versions. He really did an amazingly brilliant job of it.
Edit: It's Batman's Reply not Batman's Lament.
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