Honestly, I don't think you have to worry too much
@Gothamsknight. I do think the movie is going to be the real deal and that most fans are going to absolutely love it. Reeves is definitely aiming for the stars and that's about all you can hope for. The rest is going to come down to taste. I'm personally more just kind of nervous that people are going to recency bias the crap out of it, and the trilogy is going to become super under-appreciated for all it did for the character and film in general.
And I think it's a different feeling for me than when Nolan was doing his movies, because he was clearly going for something so different than what Burton and Schumacher did. Sure, you couldn't help but compare, but I never saw it as trying to replace anything. I think Reeves is doing something quite different than Nolan too, but because of the dark and grounded tone, it comes across a bit like "I'll do what Nolan was going for, but better + with a lot more fanservice and world-building." And it feels like that's how some people are going to receive it, like it's more of a replacement or a 2.0 of Nolan's films than just what it is- a new cinematic evolution of the character. I can't lie, that aspect of it all makes me feel more inclined to watch with a more cautious and critical eye. Especially because I'm a bit burnt out on the whole "Batman is insane and consumed by vengeance" take on the character after BvS.
I also agree with you about the state of superhero films. It's definitely the 'best' era if by best you mean the amount of them, the world-building and just the fact that pretty much anything once thought impossible to adapt is now possible. The downside of that is you can start to get numb to to it all. I definitely think Reeves is aware of this and is doing everything he can to make sure that this stylistically stands out. I 100% applaud that, and I look forward to taking feasting on Fraser's cinematography on a Dolby screen. I will say, I still prefer Nolan/Wally's visual style though. The scope of their films just really made it feel larger than life. I think it's one part the look of film itself, one part the use of IMAX, and also just from the locations they shot, both inside and outside of Gotham. There's a sense of claustrophobia I get from The Batman's cinematography. Which might be exactly the intended effect, but I'm curious how that will feel over the course of nearly 3 hours.