To create modules and add-ons as a form of Connector to Odoo - like making JIRA Connector which links both Odoo and Jira together. Also other add-ons like
Quickbook Connector and other modules which are not released or created by anyone in Odoo.
VOIP for Odoo 9.0 Enterprise
Allow template changes by users themselves, instead of going to developer mode.
Able to update older add-ons to fit with the new versions.