The names of six as-yet-unannounced Nokia handsets have appeared within an in-house tool for app developers which allows them to remotely test software on virtual devices.
The Nokia Lumia 910, Lumia 920, Lumia 950, Lumia 1001 and the Nokia 510 and Belle 805 are now listed on the Remote Device Access (RAD) portal.
A new path to Windows Phone 8?
So, perhaps the remaining 900 series devices would be upgraded with the hardware necessary to run Windows Phone 8 and hence saving the range from becoming obsolete?
It's also worth pointing out that just because these devices are listed within the RDA, it doesn't mean they're certain for release. Plans and names could change quickly.