I heard Kurt Busiek is working on a new line of Astro City. Does anyone know anything about it?

Answer 1

Kurt Busiek, in-between his other writing gigs, is currently working on Astro City: The Dark Age.
It is scheduled to be four separate mini-series, each four issues long, with a break/special in-between each mini.
The first mini's story (The Dark Age: Book One- "Thicker Than Water") was completed earlier this year. Then there was a Samaritan special and now The Dark Age: Book Two is due to start soon.
Unlike some titles, Busiek does not solicit his title until an issue, or in this case: a storyline, is complete and ready to go.
Happy reading!