Microsoft is allegedly working on an update to Windows Phone, called Apollo+. This will be a minor ‘.1’ update that will add some of the features missing in the initial release, such as support for VPN networks and OTA updates. It will also include bug fixes for issues such as Wi-Fi connection bug.
Microsoft reportedly ran out of time for the initial release of Windows Phone 8, due to which they had to leave out features such as a notification center. You can expect to see these features roll out gradually in future updates for Windows Phone 8.
Meanwhile, you can expect to find out more about Apollo+ in the upcoming Mobile World Congress 2013.
Source : The Verge