Since Zod already met a bitter end in the Arrowverrse at the hands of the Man of Steel (before experiencing a 31st-century resurrection, that is), I would vote on Ursa to be next Kryptonian (or, at least, one of the next) whom he faces off against on Superman and Lois, seizing an opportunity to introduce her to a new generation of DC fans, and bringing her back into the mainstream.
The live action debut of this villainess was her first appearance as co-screenwriter Mario Puzo originally created her, as one of General Zod’s accomplices in 1978’s Superman: The Movie, before she was brought into the comics Harley Quinn style in 2006.