Variety reports that Good Omens will be getting a second season!
Holy shit! I knew there was a lot clamoring for a second season among fans but I never thought this would actually happen! 
The fact that Neil and Terry talked about what might happen in a potential sequel goes a long way in reassuring me that a second season could be good or even necessary.
The second season will take the storyline beyond the material in the 1990 novel. Gaiman has said that he and Pratchett, who died in 2015 at age 66, often spoke of how they’d handle a TV adaptation of “Good Omens.”
“It’s thirty-one years since ‘Good Omens’ was published, which means it’s thirty-two years since Terry Pratchett and I lay in our respective beds in a Seattle hotel room at a World Fantasy Convention, and plotted the sequel. I got to use bits of the sequel in Good Omens — that’s where our angels came from. Terry’s not here any longer, but when he was, we had talked about what we wanted to do with ‘Good Omens,’ and where the story went next,” Gaiman said.
Season 2 finds the angel and demon living among mortals in London’s Soho “when an unexpected messenger presents a surprising mystery,” according to Amazon. Season 1 was released in May 2019.
“It’s thirty-one years since ‘Good Omens’ was published, which means it’s thirty-two years since Terry Pratchett and I lay in our respective beds in a Seattle hotel room at a World Fantasy Convention, and plotted the sequel. I got to use bits of the sequel in Good Omens — that’s where our angels came from. Terry’s not here any longer, but when he was, we had talked about what we wanted to do with ‘Good Omens,’ and where the story went next,” Gaiman said.
Season 2 finds the angel and demon living among mortals in London’s Soho “when an unexpected messenger presents a surprising mystery,” according to Amazon. Season 1 was released in May 2019.

The fact that Neil and Terry talked about what might happen in a potential sequel goes a long way in reassuring me that a second season could be good or even necessary.