The way I see it, is if Syfy greeenlit spin-offs to Stargate SG-1, then surely they’ll greenlight a spin-off for a Superman oriented show. Hell, if Scare Tactics got the support it did, I’d gather a Lobo series will see the light of day at some point.
It’s interesting to me that both SyFy and the Krypton production team feels enthusiastic enough about Emmett J. Scanlan’s portrayal of Lobo in Krypton Season 2 that they’re willing to hand him his own series and announce it before he’s even made his official debut as the character.