7. In season seven Smallville again worked with Sprint, bringing its customers "mobisodes" titled Smallville Legends: Kara and the Chronicles of Krypton with Clark's cousin Kara. Spin-offs Gough and Millar developed an Aquaman pilot for the WB, with Justin Hartley as Aquaman (Arthur Curry). As work progressed on the Smallville season-five episode "Aqua", although the episode was not intended as a backdoor pilot for an Aquaman spin-off the character was seen as having potential for his own series. Alan Ritchson was not considered for the role in the new series, because Gough and Millar did not consider it a Smallville spin-off. Gough said in November 2005 that the series was to be a different version of the 'Aquaman' legend and suggested a crossover with Smallville at some point. Although the pilot was given a good chance of being picked up, when the WB and UPN merged into The CW the new network passed on the show. During the sixth season there was talk of spinning off the Green Arrow into his own series, but Hartley refused to talk about the possibility of a spin-off because of his role on Smallville. The actor felt it his duty to respect what the show had accomplished in five seasons, and not "steal the spotlight" because there was "talk" of a spin-off after his two appearances. According to Hartley, "talking" was as far as the spin-off idea ever got. Steven DeKnight revealed that a spin-off Justice League series was expected to happen after the episode "Justice", and would continue the story of Oliver and his new team. Arrowverse Tom Welling and Erica Durance reprised their roles of Clark Kent and Lois Lane for the 2019-20 Arrowverse crossover "Crisis on Infinite Earths". The crossover retroactively establishes the events of Smallville as taking place on Earth-167 and reveals that in the years since the finale, Clark has given up his powers and taken over the Kent farm, where he and Lois raise their two daughters. Michael Rosenbaum was approached about reprising his role of Lex Luthor, but he declined when Warner Bros. did not show him a script, tell him what his character was going to do, nor let him know when he was going to film. Alan Ritchson, who played Arthur Curry / Aquaman on the series, was also approached to reprise his role in the crossover but turned it down due to scheduling commitments