1.Put an end to killing characters for shock value.
2.Get rid of continuity. Writers only pay lip service to it anyways and do their own thing or use continuity as an excuse to justify rehashing old storylines. Each book takes place in its own universe.
3.Greatly reduce the number of events. They derail the storyline within the books and are usually end with a nonsensical development, characters dying for shock value or some combination of both.
4. Stop shafting characters. All the members of the Flash Family CAN coexist at the same time and have done so before. Tim and Damian's generations can exist at the same time. Current writers are either too lazy or incompetent to try or are following their own agendas at the cost of these characters.
5. Put an end to the 'Batman is a broken hero who can't save anyone,ruined the lives of his allies and made Gotham City worse' narrative. Even if Batman is 'broken' he should be able to help others and improve his city.
6. Bring back the JSA
7.Fix the Titans franchise. Sort out their history and relationships. Ideally there should be four books: one for Dick's generation, one for Tim's generation, one for Damian's generation(assuming they aren't shafted in the future)and one centered around teen antiheroes/villains.
8. Fix the Wonder Woman mythos. Diana has remained mostly the same but everything else about her background and supporting cast is constantly changing(sometimes everything inexplicably changes multiple times in the same run).