One would think DC/AT&T (I should start saying that combo since AT&T is the parent company of HBO Max, Warner Bros., etc.) could easily mimic what Marvel and Disney have done but I have not witnessed any cohesive correlation made towards that end. Except for a brief and weak Ezra Miller/The Flash appearance, nothing on broadcast, cable or streaming television connects with the DCEU.
Sure, DC/AT&T pump out tons of cartoons and Western anime style content. They have made their television products have become more organized and accessible (i.e. HBO Max) to consumers but that is basically it. Unfortunately, what has/is
eventually hitting the big screen is divorced from what is seen on the small screen. The DCEU is completely split in that regard.