Notification and mail summaries definitely nice to have, thought I can live without that.

What I'd really love to have is Siri superpowered with contextual natural language capabilities and multi-commands in a natural sentence. It _is_ getting there: Siri is better than it used to be and has somewhat of a contextual knowledge so far (compared to zero, before the update) but it's not there yet. It sometimes fails miserably. It should get to LLM-level contextual "memory" to be acceptable IMO.