Well, to be honest, I can't imagine whose backstory this could possibly be if not Rand's. WTWU is mostly an ensemble series in my view, but he's still clearly "the" protagonist.

Not that I'm actually looking for spoilers here. I don't know how much they'd really do for me anyway - by Emperor Ing's admission, half my favorite characters didn't even exist when the comic was started - but either way, knowing even small things about what's going to happen (or at least what was originally planned to happen) kinda takes some of the appeal out of a comic named for its unexpectedness.