If you're a Fortnite fan that was disappointed that you couldn't do cross-play with Xbox Battle Royale players, then good news: Epic just announced that the Xbox version is getting cross-play and cross-progression with the PC and mobile versions of the game. There was some thought that politics got in the way, but Epic made special note to say that wasn't the case:
Contrary to what may have been implied, Microsoft has long been a leading voice in supporting cross-platform play, connecting players across PC, mobile and all consoles. We?ve been working together with them over the last several months to make this possible, and will bring this functionality to Fortnite players on Xbox right along with other platforms.

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Now, there is one thing to note: it doesn't appear that cross-play will work between PS4 and Xbox. Specifically, Epic's news says "between Xbox One, PC, Mac, iOS and (in the next few months) Android." Sony and Microsoft historically have never allowed cross-play between systems, even though it should be quite apparent that there is not a significant technical hurdle to make this happen.
We can look at another significant title with cross-play, Rocket League, and see two things. One, Psyonix's Jeremy Dunham says that adding PS4 cross-play to the game is "literally something we could do with a push of a button, metaphorically. In reality it?s a web page with a checkbox on it. All we have to do is ch...