Will Zod return?

[Billy Jor-El]

We know that at least one of the disembodied phantoms escaped from the Zone when Clark got out. Betcha it's Zod's spirit/phantom that we see floating around. Of course, there's the thought that the Zod phantom wouldn't be in the Zone still while he was enhabiting Lex, but either way, I bet Zod will be back...

[D.M.A.]

well if lex tries to figured out what he did or what's in the black box then I'd say yes maybe.I wouldn't mind seein him come back in the season finale.Maybe by then after clark fights off all the PZ freaks he'll have to embrace his destiny alil more,cause I'm guessin a 2nd fight will be much harder to overcome now.he was smart last time but doubt Zod underestimate him again,so maybe

[Spirit Detective]

Yes he will return, but with a corporeal body.