The premise just feels wrong like it is way too narrow superman kills his wife and unborn child and offs an entire city accidentally and decide to become a tyrant like really nothing else. They could have easily chosen storylines like
1. Superman turning himself in after killing the joker thus leading him to joining task force x
2. Superman leaving earth to start afresh somewhere else
3. Clark deciding to abandon the cape and become a mercenary like Slade by the way how old is Slade 90
4. Clark deciding to become a vigilante
5. Clark deciding to get help with his mental health and accepting to be admitted into arkham
6. Clark decides to stop helping people altogether but instead exploit them in secret like lex luthor I think that would make quite a story with Bruce investigating Clark's long strings of money laundering
7. Dude could decide to start a gang become a force to be feared like the falcones, triads,yakuza etc
8.Clark going into hiding after killing the joker and building a team to protect him from Bruce
So many ideas but decide to go with the one were superman is utterly witless as usual I never understood why Clark trusts Bruce let's him in his fortress, in his home ,when Bruce as screamed it in his ears that he doesn't trust him one bit. Like what did he think Bruce will do carry him on his laps and tell him everything was going to be okay don't get me started on diana