[quote=@Master Bruce]
<Snipped quote by Retired>

I think a world that truly, utterly utilized a One Universe approach where the characters had to be drastically different and changed by one another's existence would be interesting. Imagine if Kal-El's rocket landed to Earth at a time when HYDRA was still functioning, or if Thor's hammer were found by Barry Allen instead of Donald Blake. Or if Spider-Man were created by a spider who was an avatar of The Red, making him less of an enhanced human and more of a monster in the vein of Swamp Thing. A world full of fun stuff like that, where the dynamics are completely shifted for everyone. 

Another possibility is a DC or Marvel future where the grandchildren of each hero inherit the mantles, like a giant legacy Earth in the vein of MC2. There's a ton of rife potential there if you set it far enough ahead for most of the heroes to be dead or out of action.

Another idea I had is a DC Universe where each hero is a supernatural creature. So Superman would be a horrible monstrosity from space, Batman would be a vampire, Wonder Woman would be an undead Themyiscarian witch, The Flash would be an interdimensional demon, and so on...

None of them are wildly original ideas, but I like simple concept alterations as much as I like massive universe shattering ideas.
[/quote]

You may enjoy one or two worlds that I have planned, then.