Fans of Warcraft’s real-time strategy roots might have assumed that the announcement of Warcraft 3: Reforged at BlizzCon 2018 indicated that a full-fledged fourth game was on the way, but it doesn’t appear that this is the case – at least for now.
Speaking to GameSpot, Blizzard senior producer Pete Stilwell said that his team’s priority, “first and foremost,” is to make Warcraft 3: Reforged as good as it can possibly be. Stilwell stopped short of saying Blizzard would never develop a fourth Warcraft game, but said the studio doesn’t have any plans for it at the moment.
Source: IGN.com Blizzard Has 'No Plans' for Warcraft 4 Right Now, Warcraft 3: Reforged Is the Priority