New Windows Phones have appeared and used for testing device speed and performance. The first is the Nokia Lumia 930, seemingly a variant of the Lumia 900 with perhaps updated specs or for different radio technology i.e. CDMA. This could also be similar to the Lumia “910” which some sites have reported as being a 900 but with a 12MP camera instead of 8MP.
Still, until we can corroborate this information, file it under rumour.