Trello is late to the party, but has finally arrived! Airtable & Notion at least had many of these capacities for years already, but I'm curious how Trello has worked them out. They seem neat from the samples.
The project/work management space is equalizing and a "dominant design" is emerging. This can be likened to the sameness of "stories" functionality in social media & messaging apps nowadays. The Dashboards functionality is interesting however, at least Notion doesn't have this yet (and would benefit from having it!).
Beyond the obvious benefits of having more views, the things I think are most cool are the upcoming developer-accessible Views system and Mirror cards.