Effective Exceptions — We should define the SlingException as a RuntimeException and use it as the base class for all exceptions defined in the Sling API.
Add ResourceResolverFactory Service Interface — Easier and more flexible access to ResourceResolver instances providing the ResourceResolverFactory interface in the Sling API and allow for the extensibility of the factory using new ResourceResolverProvider services.
Updating the Sling Launcher — How we could get the Sling Launcher to be updated through management interfaces such as the Felix Web Console or the Felix Shell.
Multitenancy Support — With support for virtual host resolution we made a first step towards multitenancy support. I would like to propose a further step to provide a basis for further multitenancy support throughout Sling.