[quote=@mattmanganon]
[@Master Bruce] only question I have about the "From Marvel & DC and ONLY from them" is: What about the properties that Marvel & DC that used to take part in their timeliness but have been lost due to copyright issues stand? I'm talking stuff like Transformers, Rom The Spaceknight and Micronauts. I realize this is a mostly Marvel thing, but the question still stands.

I mean, most of those were never decanonized. Micronauts keep popping up, Circuitbreaker and Deathshead origins as Transformers villains were never technically decanonized and Rom is now back at the company. And let's not forget the fact that James Gunn's last act as a director at Marvel was to Canonize the Go-Bots in the MCU.
[/quote]

I think for this type of game specifically, it would be too much to introduce and have going on alongside the superheroes and supervillains also showing up for the first time. I'm not familiar with Transformers' place in the larger Marvel canon, but my feeling is that their appearances would dictate entire dedicated stories and books in of themselves. It would kind of detract from the idea that the biggest thing to ever happen to this world was, say, a character like Wonder Woman showing up if you also had Optimus Prime and The Decepticons. It'd almost overshadow it. Any sort of bigger property that veers off the path of vigilantes versus costumed bad guys probably wouldn't fit, for that matter. Star Wars, for instance, is one thousand percent a no-go despite being published by Marvel. And with DC, they have the Looney Tunes... it just wouldn't mesh.

The same goes for Godzilla and King Kong (and their assorted monsters), who were just in a huge crossover title with the Justice League as of [i]this year[/i]. It'd be too much.