Why are you so convinced we won't get Flash or Cyborg? Flash seems a popular character, I'd be amazed if we didn't get him. Cyborg might be the one they miss out which would really bug me. His suit looks one of the best in the movie. With most of it seemingly lit up it might be difficult for HT to pull off but they'd better give a damn good go.
I imagine they'll do at least three versions of Batman, maybe one of them a Wayne figure.
Superman regular and black suit(assuming it's in the film)
Wonder Woman
Aquaman
Flash
Cyborg
Possibly the villains and Hal Jordan if he has a cameo, post credits scene or whatever the speculation is.
Aquaman, Flash and Cyborg I'll pick up for sure if they are made so I can complete the JL team in my display. Black suit Supes if he's there would be a day one pre-order to. If done right, black suit, no cape, bright silver S and at least a beard if not the full mullet it would be a grail peace for me. To be honest I hope HT do it even if its not in the movie, it would surely prove popular. They did that weird Bat/Joker thing that wasn't in SS after all.
WW and regular Supes I might get if they are sufficiently better than their early versions but they'd be lower priority. Batman I'm not loving any of his looks so far but cant rule out the technical suit if it grows on me or the regular look if they find a way to make the Bat symbol and cowl really pop against the grey suit the way it does on screen. That's my one small gripe with the BVS version though I'm never selling that figure!
