Metro Exodus is published by Deep Silver, which THQ Nordic acquired earlier this year along with the rest of Koch Media's games business. In sad news for anyone looking forward to braving the irradiated cruelty of post-apocalypse Russian Federation, that's now slipped roughly six months to the first quarter of 2019.
It has nothing to do with THQ Nordic, but it does at least have an official release date... of 2021.
This is reiterated by THQ Nordic's Q1 2018 financial report.
Like the previous Metro games, Exodus stars Artyom, who is fleeing the ruins of the Moscow Metro with a band of survivors. Both Last Light and Metro 2033 were enhanced for current-generation consoles as Metro Redux, with 2033's gameplay being tweaked to more closely resemble its sequel. For the first time in the Metro series, Exodus will feature an open world. It gives players more breadth to move around the world above the Metro, which takes a lot more design scrutiny and testing. They began as self-published online works in 2002, and did not appear in English until a short time before the original game was released.
In the report, the publisher also touched on two of its anticipated games, those being Darksiders 3, and the promising Biomutant.
It's unlikely that they'll reveal an actual release date at E3, but then again maybe they will.
We just have to wait for the fair in Los Angeles to be able to see Metro Exodus again in action, the game is now awaited for the beginning of 2019 on PlayStation 4, Xbox One, Xbox One X, PS4 Pro and Windows PC.