Take this with a grain of salt, but here is something I found on the interwebs today.
New about Battlefield 6
The next installment in the Battlefield franchise is set to be revealed at the Summer Game Fest hosted by Geoff Keighley . Battlefield 6 is to be the largest game in the series with 100 v 100 game modes with the largest, most destructible maps ever seen in gaming, classes will return and players will be able to customize their character similar to what you can do in Battlefield V.
>The story it’s set during a modern civil war in America.
>Game will release early October this year.