Lumia 830 with a 10 MP PureView camera and Lumia 730 / Lumia 735 with a 5 MP wide-angled selfie and 6.7 MP rear camera have been unveiled by Microsoft Mobile at IFA on 4th Sep. You can read more about these two devices by clicking here and here.
In case you want to check the imaging quality of these cameras, here are some official imaging samples.
Lumia 830 samples: Lumia 730 Selfie samples:
Lumia 730 rear camera sample:
Click here for full-size images.