After about 8 minutes and 40 seconds in the video, the author of Metro 2033 and Metro 2034 reveals that there is going to be a new book set in the Metro universe, called Metro 2035.
Metro-Goldwyn-Mayer | Metro Manila | Taipei Metro | Metro | Metro Detroit | metro | Paris Métro | Metro Manila Film Festival | Montreal Metro | Line 13, Shanghai Metro | San Juan, Metro Manila | Moscow Metro | Metro Pictures | Hökarängen metro station | Delhi Metro | Warsaw Metro | Slussen metro station | Prague Metro | Metro Chicago | Metro 2033 | Helsinki Metro | Itäkeskus metro station | Metro Networks | Tyne and Wear Metro | Stockholm Metro | Santiago Metro | Midland Metro | Metro Vancouver | metro station | Metro-North Railroad |
It is not based on Metro 2034, because the developers felt it was less fit for a game than the original book.