By Staff (media@latinospost.com) | First Posted: Feb 26, 2015 04:18 AM EST

Just like Samsung and HTC, Microsoft is also reportedly preparing for an upcoming huge event. GSM Arena revealed that Microsoft might reveal several new Lumia phones this first week of March during the much-awaited Mobile World Congress in Barcelona. In its report, GSM Arena cited the slideshow provided by AdDuplex online. Here is a part of AdDuplex's 17 slides:

"Unreleased phones (February 19th, AdDuplex)

Mobile World Congress is just around the corner and there's a lot of speculation of what phones Microsoft may announce or launch there. Here's what we see in our stats:

- Microsoft/Nokia RM-1031 - 480x800, 4". Seen all over the place so must be close to launch. Interestingly searching for this model number online returns matches for Nokia XL (short-lived Android phone)

- Microsoft/Nokia RM-1062, 63 (AT&T), 64, 65, 66, 67 - 720x1280, 5'7". We've covered these before, but now we see quite a lot of them (including one version on AT&T in US). So that would probably be another MWC announcement.

- Microsoft/Nokia RM1072, 73 (AT&T), 74, 75, 76, 77 - 720x1280, 5". Another phone we've covered before and again seen all over the place. Expect soon.

- Microsoft RM-1109, RM-1113 - 720x1280, 5". Just a few sightings in Brazil (1109) and in Asia (1113). Could be the same phone as RM-1072 or a specialized variant of it.

- Microsoft/Nokia RM-1099 - 480x800, 4"

Unfortunately, we haven't seen anything new from either HTC, Samsung, or LG, so we shouldn't expect any new Windows Phones from them in the MWC timeframe."

GSM Arena revealed that the some of those phones in the list probably pertain to the 5 inches Lumia 640 and the 5.7 inches Lumia 1330 which are both said to come out via US phone company AT&T. The news outlet noted that the Lumia 640 was earlier spotted in Brazil. It has a 720p screen, the Snapdragon 400 chipset as processor, an 8.7 megapixel main camera and a 0.9 megapixel front camera for selfie, and a 1 GB of RAM. Buyers also have the option to choose a dual-SIM variant of the phone. It also has LTE connectivity as well as an NFC chip. It is expected to have a price tag of $275. Slash Gear said in a separate report that the Lumia 640 would have an 8GB of storage.

Meanwhile, the Microsoft Lumia 1330 or 1335 has a 5.7 inches HD OLED display. Plus it has an amazing 13.1 megapixel camera with Zeiss optics and a 5 megapixel front camera. It will have the same processors as the Lumia 640 - Snapdragon 400 chipset. It is also expected to have LTE-Advanced (Category 4, 150Mbps) and a 1 GB of RAM. As for the RM-1099, GSM Arena said it would probably have a dual-SIM variant.

Phone Arena said there is a possibility that Microsoft might ditch this year's big event. Here's why: "None of these devices is seemingly made of flagship material, which means that Microsoft might skip this expo as well and leave us waiting for a new flagship even longer. Take this piece of info with a grain of salt, but it seems that Microsoft might have something to soothe Windows fans with."

In the meantime, watch this new video from Microsoft Lumia:

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