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.