It just seems like a waste of a slot to me. Waller is by design an extraordinarily unlikable character, and one that we've already seen a lot of. I'd much rather see something new instead. Anyway, here's the trailer for the latest big upcoming capeshit movie:
Everyone seems to be praising this, but I can't really say that I like it. For one thing, in stark contrast to how Patty Jenkins reinterpreted how Diana would move and fight in her solo movies, this portrayal of the Flash and his powers still feels beholden to Zack Snyder's effects-heavy depiction of him as a walking pyrotechnics show. The constant visual chaos whenever the Flash was moving in JL was ugly and incoherent, and it's a real disappointment to see that apparently nothing about it has been changed. Hell, they've even included another (at least one!) slow-motion scene so we can see a close-up of Miller once more spazzing out while trying and failing to imitate running. I also don't care for the suit, which is way too busy, but that's a minor point.
It looks like a big part of the movie is going to involve revisiting the climax of MoS. Do people really want to see this? Is there really that much nostalgia for MoS? I know it was nowhere near as hated as BvS, and does have its fans, but it was still a very divisive movie that a lot of people really disliked. And, yeah, I'm one of them. I'm not keen on seeing more of MoS, and I'm definitely not looking forward to seeing more of Michael Shannon's Zod. He was a one-dimensional blowhard, and in my view Shannon simply didn't have the charisma or gravitas to make his role resonate more. Maybe this all ties into the semi-reboot of the DCEU that this movie will herald? We obviously see Supergirl here, so maybe what happens is that she shows up instead of Superman and then the timeline dramatically changes. It's just a guess at this point.
But the elephant in the room is of course the return of Michael Keaton's Batman. It's great to see him back, but his delivery of "Yeah...I'm Batman" sounds kind of snarky, like he's exasperated that Barry is pointing out the obvious. Granted, I have no idea what the relationship between him and Barry is going to be, but I feel like such an iconic line should have been delivered sincerely, even if nothing else he said was. He is Batman, and he takes that seriously. A more serious problem I have is the fact that he then promptly turns into CGI Rubber Man and begins engaging in generic CGI capeshit action that not only looks fake as hell, but is also completely unlike how this version of Batman moves and fights. I don't think any version of Batman should be moving and fighting like that, frankly. Batman is for all intents and purposes a normal man. He can't fly or break the laws of physics, and my view of how Batman movies should handle action beats is that if you can't bring a scene to life with actors and stunt work and need to rely on CGI, then you shouldn't be doing that scene to begin with. If they couldn't give Keaton's Batman any action scenes without turning him into a blob of CGI, then I'd much prefer him not to have any action scenes at all.