DICE had promised players in April that it would release a new large-scale update for Battlefield for the last time. There have been some recent developments on this issue.
Battlefield 5's community manager confirmed in a post on Reddit that the June update will be released soon, and that it will be the last major content update. Although there will no longer be major content updates for the game, small-size updates will continue to be released for various bug fixes and improvements.
Battlefield 5 was first released in 2018. As with most games, developers are gradually stopping developing previously released games to devote more time to new games. In Battlefield 5, this situation seems to be in effect from the coming months.