Yeah this. It's not going to happen. D&D/MtG movies could, potentially, do decently and make quite a lot of money, F&F-style, but the idea that they're going to be MCU2: Electric Boogaloo is, well, beyond far-fetched and into the realms of "fansy" as Shakespeare might have put it.
Yup.
Blaming Ezra Miller for the DCU's problems is like blaming the spotters on the Titanic. The reality is, it was a systemic failure (not to get too diverted but the Titanic was "driving dangerously", with bad information, the spotters didn't have the tools to do their jobs, and the safety systems weren't designed with the anticipation of taking a hit like that - among many other factors).
If the DCU management/leadership were remotely function, not a completely bunch of numbskulls (on so many levels) then bad behaviour from one star who hasn't even had a solo film couldn't damage them. I mean, you think if Mark Ruffalo or Chris Pratt suddenly got implicated as a cannibal (y'know, like a certain other Hollywood fellow) that Marvel would be "in chaos"? I don't - and both of them have solo films, even! They'd just kill off the character Poochie-style and move on. The MCU is like a shark not only in that it keeps moving forwards, but also in that it's continually growing new teeth. Every character has some other variant (in some cases literally a Variant) of that character waiting in the wings. They're up-armoured against this.
The MCU is not doing as great as it was for a lot of reasons (becoming "boring" being one, repetition and overfamiliarity will do that), but the DCU has been a screaming car crash of a mess from day 1. The only remotely together films they've put out in the last decade have been Aquaman and Shazam (of all people! The two most laughable/embarrassing/least-known "major" DC heroes), and I guess the Gunn-helmed Suicide Squad stuff. All of which is wildly tonally different (though notable all kind of more fun/colourful than the Synder/Nolan stuff - both of whom are good movie-makers but haven't always hit it out of the park with Supers). Oh I guess the new Batman was also pretty good, but was another entirely different tone, and seems to be set in a separate universe.
Spot-on. And those people (er... including me) evangelised about Iron Man and how it looked like a good movie being "done right".
But yeah as you say, who in D&D has that? Drizzt kinda but he's also a figure of fun. Dragonlance kinda, but you have two ornery and kind of silly people in charge of it, who would, no doubt, want to be mess around with and have public opinions on it. Annnnnd that's about it? What are we going to do, The Prism Pentad?
I would definitely watch a Saw/Cube-style deal with The Tomb of Horrors but I don't think that'll ever actually happen sadly.