Since you had most detailed description here, do you know if any updates with Bastard? on mydramalist we can't…
I think somebody just manually excluded him from the list because there’s been no news about casting changes. I mean there haven’t been any news overall and I suspect the project is on hold and they have production difficulties.
Some Korean websites mention that information about the adaptation appeared back in 2018, and the director's name was also mentioned in 2018. Initially, it was supposed to be a movie, but then the format was changed to a tv-series. My guess would be that they are having casting issues, as it seems to me that they chose Jihoon after seeing him in WHC, which is why they haven't replaced him with another actor and are likely waiting for his agreement. Also, supporting the theory that they have casting issues is the fact that they still haven't found an actor for the role of the father, and the father is a crucial character— 50% of the drama's success depends on the son, and 50% on the father. Maybe they will announce the actor for the role of the father after Jihoon agrees, and those two casting announcements will be made at the same time. Anyway, I'm waiting because Bastard is amazing