Speculation Since learning about the throwback fourth jerseys, I’ve been wondering if the Kings (and Blues) were a test case in 2019-20. It seemed odd to me that they’d wear the 1988 throwback jersey for one game without any real reason. Usually these things are done to commemorate an anniversary or some other special event. That wasn’t really the case for this jersey so I’m wondering if Adidas and the NHL were using them this year to gauge fan reaction. Either way, I could certainly envision it coming back in 2020-21.