https://www.techradar.com/news/battlefield-1s-monthly-updates-will-end-in-june

EA DICE has announced that as of June 2018 Battlefield 1’s monthly updates will come to an end. 

Writing in a new blog post, DICE content lead Jonas Elfving said that up until June, players can continue to expect the regular content additions as well as changes and bug fixes. That doesn’t mean that after June support for the game will just end. It will, however, wind down slightly.