According to the website for Metro 2035 (the final book in the Metro series), the next title in the series may come out next year.
The website has a timeline for the release dates of the Metro books and video games, and there seems to be a milestone for the next game in 2017. The description reads, “It all adds up to something. Where the books end their story, the game will pick it up. An era of great discoveries lies ahead.” This could mean that the game will pick up after the events of the last book, set to release this year.
The last title in the series, Metro: Last Night was released in 2013 and was a huge success. Later, both the games in the series got remastered versions as part of the Redux bundle. Presently, the studio is also working on Arktika 1, an Oculus Touch shooter set in a post-apocalyptic future.
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