I'm making some guesses here but Alt-Clark looks a lot like the Clark that hopped off the bus in Season One suit-wise. I don't know why but I also am guessing that Cat's going to make him Season 3-4 Clark preeetty darn quick (suit-wise.)

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.)