Battlefield 6's Season 4, titled Naval Warfare, is confirmed to launch on July 21, 2026, bringing large-scale naval combat to the franchise for the first time as a core mechanic. The centerpiece is Tsuru Reef, described as the biggest battlefield to date, featuring a vast coastal map with islands, open waters, and amphibious operations across land, sea, and air. Players will pilot the RCB-90 Patrol Boat and the 7.7m NSW RHIB, while the arsenal expands with four new weapons including a new sniper rifle, and a new Ranked Battle Royale with fresh rewards. The update also reintroduces Wake Island, redesigned to suit the expanded scale and naval dynamics. Trailers and gameplay demonstrations accompany the release, highlighting dynamic waves, evolving battles across water, air, and ground, and the return of Wake Island later in the season.