Amazon has not officially announced it has renewed the Stana Katic series, and nothing came out of Amazon’s summer 019 TCA panel about the series’ future on the streaming channel. Yet, however, Stana did drop a hint on her Instagram account in early July 2019 suggesting they’re working on a season three.
Edited to add the following (I forgot about this nugget):
Deadline.com did post an article on the same day the Instagram post was made that the series was nearing a renewal at Amazon. In the past, the streaming channel has been slow to announce renewals. Expect the show to go into production sometime this year in Bulgaria.
Katic also made reference to “getting into shape” for a project she cannot yet talk about.