Today, Google has a "timed publishing" system for app updates, allowing you to submit an app update today and schedule it to go live on a future date (after successful review). We need the same system for new app releases.
Apple, which also has a multi-day review process for new apps, allows you to submit an app for approval and then hold it for manual release. After approval, you push the button on release day, and the app goes live immediately.
Also: surprising us with this on release day is really unprofessional of them. The "we'll take more time" warning banner doesn't show up until after you submit the app. There was no way to know we had to submit early until it was already too late to act.