I'm not as uncertain this won't affect our fandom at least a little. The first sentence on the page about Kindle Worlds mentions comics. If they get Warner Brothers to approve comic book fanfiction as a fandom, I can see many of the comics (with some alterations) working in other universes. Specifically the Man of Steel era of comics.

CLARK: No. I'm just worried I'm a jinx.
JONATHAN: A jinx?
CLARK: Yeah. Let's face it, ever since she's known me, Lois's been kidnapped, frozen, pushed off buildings, almost stabbed, poisoned, buried alive and who knows what else, and it's all because of me.
-"Contact" (You're not her jinx, you're her blessing.)