Depends on when the show debuts. If it debuts after Batman vs. Superman I can see it happening. If it doesn't connect I'm fine with it but it would be so much cooler if it did.
If there's a show that should connect to the movie universe this is it. Also TBT equals less CW drama bullshit. The question is if this happens do they move Ray Fisher Cyborg here?
I wouldn't be mad if he wasn't considering their roster will have seven heroes already and unless the Injustice/Secret Society are the first villains there is no use for Black Adam again who is Captain Marvel's counterpart.
I think they'll separate Shazam but leave the possibility of a crossover open. Especially if Shazam does well and The Rock's Black Adam is well received.