Early playtesting of the next Battlefield game is now underway—there hasn't been an official announcement to that effect as far as I know, but we can tell because gameplay footage is flooding the internet.
The testing is taking place under the auspices of Battlefield Labs, the initiative announced in February that aims to ensure future Battlefield releases go better than Battlefield 2042, the most recent addition to the series, which did not make an especially good impression among fans. The Battlefield Labs announcement video concluded with a 10-second clip of pre-alpha gameplay showcasing environmental destructibility, and that's central to quite a bit of the leaked gameplay footage as well.
