With the new Relationships, it would be useful to be able to display them on Cards in Board View. For example, if you want to set up a relation between Projects and Tasks, or Epics and Bugs, as opposed to a Task/Subtask arrangement, you can't see the parent relations right now. If we could show relations on the Cards in Board view, you could solve this.
This is a big element of some of the nocode tools (Airtable, Notion, Coda) that give you more freedom around views.