There will be an installer like you know it from shopware 5. The extra functionalities will be provided via plugin, as soon as they are available. Please have a look at our roadmap to get a detailled overview of when those features will be completed: https://www.shopware.com/de/roadmap/
There won’t be any difference between CE / PE in july (apart from official support) - this will be added as soon as those features are ready during Q3.