There are few doubts that Metro Exodus be a game a lot ambitious as expected. Precisely because of the new heights he wants to achieve, the game had been returned to the 2019, extending the waiting of the players. Exodus will still come out in the 2019, but the good news is that the wait will last a little less than expected: the game will come with one week in advance compared to the previously communicated date.
The reasons for the advance are not clear, but undoubtedly this will benefit the game, whose previous launch date coincided with the one of Anthem. The developers promised a game "bigger than" Metro 2033 e Metro Last Light put together, "and we will shortly know if this promise will be kept.
Metro Exodus released the February 15 2019.