I often have a usecase where a single card has two or more tasks in it with different deadlines. I would rather not split out the tasks into new cards, seeing as they are both related to the same information.
One way this could work would be to show tasks with deadlines in the relevant daily notes - either as an append or as a lookup of some kind. Another would be to have the note itself targeted at multiple dates, so they show up in the “Today” view.