Another link is building between Smallville and Flash Gordon. According to a post on her official fan site, GinaHolden.net, Gina Holden (Flash Gordon, Aliens vs. Predator - Requiem) is coming to the town of Smallville.
While her own site may be coy about Holden's role, KryptonSite.com offers a suggestion. Smallville is currently filming the episode Traveller, which features Patricia Swann, the daughter of Dr. Virgil Swann (who was played by former-Superman Christopher Reeves). The Swann family has been instrumental in informing Clark about his Kryptonian heritage, and it seems likely that the role Holden is playing is that of Patricia.
This will create a new tie between Smallville and Flash Gordon. The first tie comes from Eric Johnson, who plays Flash. He appeared in the early seasons of Smallville as Whitney, Lana Lang's first boyfriend.