In PUBG: BATTLEGROUNDS, the music theme in the game lobby will traditionally change on the occasion of the release of patch 18.2 with the new Deston map. The developers have released a recording of the new soundtrack, as well as showing the lobby for the new patch and skins from the next Survivor Pass.
Previously, PUBG Studios announced the exact release date for the new Deston map. Patch 18.2 will be released on the main PC client on July 13th. Probably, a week before that, the update will be available on test servers.