As we rely more and more on Home Assistant, it would be great to see the resilience story of HA improve. Would love to see a high availability feature added to HA where if your HA goes down then a backup can take over. There are private projects out there trying to achieve this like HAHA but it seems to me that as we all become more reliant on this it would be great for the core product to provide this out of the box if you choose to enable it.
As always, love all the great dev work being done on HA!