Update: New information has come forward to suggest that this is really the unannounced Lumia 640

Mobile World Congress is just a few short weeks away, and Microsoft is expected to unveil some new additions to the Lumia line. No flagships are on the horizon to our knowledge, not at least until later this summer. However, an expected replacement for the aging Lumia 1320 is certainly plausible, bringing the affordable phablet series up to par with the '30 series of Lumias.

The site Janela Tech has found a filing with Anatel, the regulatory agency in Brazil similar to the FCC that jives with a new Lumia model they may be for a Lumia 1330. The model number RM-1109 is tossed around the documents, but the only piece of real information about the device is its battery model and size: BV-T5C model and 2500mAh of power.

A 2500mAh battery is rather on the large size for a smartphone (Lumia 930 is 2420 mAh, while the Lumia 1520 is a massive 3400 mAh), suggesting that indeed this could be for a phablet-sized device.

Rumored specifications for the 'Lumia 1330' include a 5.7-inch 720p display, 1.2 GHz Snapdragon 400 processor, 14 MP PureView rear camera, 5 MP front-facing camera, and 32 GB of internal storage. However, none of this information has been confirmed or substantiated.

The rest of the filing is confidential under an embargo expiring on March 13, just days after Mobile World Congress.

All in all, it just adds fuel to the fire that a new Lumia (or Lumias) are getting ready to be announced by Microsoft. Of course, the devil is in the details. Until we get some hard numbers and facts about what is coming, such evidence as Anatel's filing is anecdotal.  

Windows Central will be at Mobile World Congress covering the Microsoft announcements, so make sure to tune in March 2 through the 5th!

Source: Anatel; via Janela Tech; Thanks, Carla S., for the tip!