The certification process was successful and I published the Week View 8 update some minutes ago. This is, how it looks like in the windows phone developer center:
And after you click „Publish“. 🙂
As you can see there are 2 versions of Week View – the WP 7.x and the WP 8 version. The WP 8 version has some WP 8 specific features that are only possible in WP 8 like voice commands and using the „SaveAppointmentTask“ to create appointments in all calendars.
Next thing to do is to update the WP 7.x version with the ‚common features‘ and send the update to the certification process as soon as this is done.