I got very excited when Angular & CLI team announced that they are working on Schematics.
Automatic generation and updating of a code base in organized well defined manner sounds like a lot less tedious work for the developers
Lots of stuff is possible with the help of schematics already. From official initiatives like being able to ng update your project dependencies and ng generate stuff like components or pipes, through semi official (ex Angular team) stuff like nx with schematics for generating services for popular ngrx state management library to small custom one-off schematics which are starting to pop up on npm.