Personally, I have pretty mixed feelings about Multiversus.
Even if it does end up being a fighting game as opposed to some mobile Gacha game, which is actually pretty possible (much to my disappointment, but hey what can I do), I think that the roster would genuinely suffer because of what it is.
"Warner Bros." is too big.
Looking at something like Nickelodeon, Nintendo or even PlayStation, there's sort of a rough idea of certain characters and series who are more well-known than others. This is why, on a conceptual level, games like NASB, Ultimate and even PS All-Stars could work well.
The thing is, Multiversus couldn't add smaller characters. Like, at all. If they were to focus on something like Cartoon Network, Looney Tunes or even just WB movies, then I think it would work well - they're "self-contained" enough to, within reason, work, and having guest fighters like some Hanna-Barbera characters (such as Fred Flintstone) could work well too. The thing is, a full WB crossover would have so many "big characters" that, well, it would be literally impossible to have smaller or more obscure picks there, simply because of how much stuff WB owns.
As much as it's fun to speculate, I constantly feel like people's Multiversus concept rosters - whilst being incredibly cool (Seriously though, I love seeing people's concepts!) always seem to lack certain characters, and always for the same reason - mostly, "WB owns that much stuff that it wouldn't be possible to represent everything." It's not that they're making bad rosters - they're usually hella cool!! - it's just a matter that WB is too big.
Personally, if I were WB, I'd probably stick to something like Cartoon Network. Even so, I'm hopeful it goes well... and that it isn't some gacha game
I'd love some reps for non-gaming hardware and software.