Killing Eve spin-off is in early development, according to reports.The series, which hasn’t yet been green-lit, is said to focus on the early life of MI6 spymaster Carolyn Mertens, who is played by Fiona Shaw in the original series.Deadline reports that it understands that Sid Gentle Films is in discussions to produce the spin-off, which would come to BBC America and AMC Networks if given the thumbs up. No timetable on delivery has been given.The US publication added that it’s unclear whether the new show would air on BBC America (it’s broadcasted on the BBC in the UK) or another AMC Networks-owned channel or streaming service.