New content includes new playable characters, a flamethrower, and more.
Metro Exodus

Earlier today, Deep Silver announced the details of their Expansion Pass content for Metro Exodus. This content will include two major pieces of story DLC. These will be all-new stories told through the eyes of two different characters. One is through a "new character" while the other will be told through Sam, the only American on the Aurora and one of the Spartan Rangers.

The expansion can be purchased for all versions of the game including the PlayStation 4, Xbox One, and PC. Now, the expansion pass on PC can still (so it seems right now) be purchased through Steam if you already own the Steam version of the game. As you cannot buy the Steam version of the base game at present, those who don't already own it on Steam from before it was pulled from being sold, probably shouldn't buy the expansion there. You could just keep waiting for the Steam release which should be around mid-February 2020.

If you do not yet own the game but want it right now, you can purchase both Metro Exodus and the Metro Exodus Expansion Pass from the Epic Games Store.

I hear there's a bit of a sale going on right now that allows you to get Metro Exodus for $34.99 ($15 off).

It's at this point that the press release itself is warning me about potential spoilers. So I pass this warning along to you, dear reader: There are spoilers beyond this point! Continue reading at your own risk!

The first content is called "The Two Colonels" and will follow Colonel Khlebnikov in the underground city of Novosibirsk. His adventure takes him making his way home to see his son, Kirill, for New Year's Eve. Of course there's a little bit of an issue! It would be a rather boring piece of content if there wasn't something wrong, right?

But all is not well with the people here: the slime is further consuming the tunnels, mutant attacks appear to be on the rise and the precious ‘green stuff’ that protects the people from radiation poisoning is running low. In order to secure the survival of the people, those in charge may need to take drastic measures …

Following the journey and experiences of Khlebnikov during the last days of life in Novosibirsk, which Colonel Miller retraces a year later, players can expect the classic story-driven gameplay of the Metro series in this new linear chapter, complete with a brand new weapon, the deadly flame-thrower; claustrophobic environments; and the all-too-familiar hair-raising tension.
The second piece of content is called "Sam's Story," which will be released in early 2020. This includes a new "sandbox survival level based on Vladivostok." Let's see what Sam will be up to for his expansion.

Sam, a U.S. marine at the Moscow embassy before the bombs were dropped, has long dreamed of returning to his homeland, and maybe finding his family alive. The prospect seemed impossible in the darkened tunnels of the Metro, but when the Spartans discovered that Moscow was not the only city left alive after the war, holding out hope didn’t feel so foolish anymore.

Sam makes his way away from the Aurora in search of a way back to the U.S., arriving at the remains of Vladivostok’s tsunami ravaged harbours, ruined industrial buildings, and crumbling residential districts. To complete his journey, Sam will discover that he needs every tactic he has learned so far to survive, as his surroundings prove to be far trickier than expected.

Players will forge Sam's path through the sandbox survival landscape of Vladivostok, as they take a brand new journey across the wasteland of post-apocalyptic Russia.