The Schedule for Overwatch OGN Apex Season 4 has been released. Season 4 will feature only Korean teams as opposed to previous seasons where we have seen participation from several international teams.
EnVyUs were the winners of Season 1 and have been a regular participant in subsequent seasons. The OGN Apex Tournaments have been the best tournament in competitive Overwatch and have been considered the premier tournament in Overwatch esports scene.
The full schedule for Season 4 can be read here.