It is now confirmed that not only will Civilization VI be getting a massive update on June 25, cross-platform online play will also properly return too.
Firaxis Games themselves put out a post on Twitter, confirming this last week and then replying to us to mention that includes Linux. Aspyr Media, who ported it to Linux and macOS also confirmed this on Twitter too. This is going to be good news, since the recent updates prevented many people playing together.
Additionally, on June 25 Civilization VI will be getting a huge update. This is part of the new development cycle that Civilization VI is going through with the New Frontier Pass, as they do a DLC -> Update -> DLC loop for the next year. What's coming? The Red Death Battle Royale mode is getting a second season with Aliens and Zombies. If you've not played Red Death, it's surprisingly fun actually. Actor Sean Bean will also be returning to add in some narration to the Red Death mode.
The update will also fix a few exploits in the normal Civilization VI gameplay. Firaxis said to expect the full notes when the update launches.