It's no secret the Lumia brand is struggling to gain any significant market share these days. Earlier this year, it was reported that Microsoft's Windows Phone OS dropped below 1 percent mark share, all but confirming the death of Windows Phone. A new report suggests that, despite the irrelevance of Windows Phone, Microsoft will not be giving up on its mobile OS. Instead, the company plans to drop the Lumia brand by the end of the year and replace it with a brand new Surface Phone in an effort to breathe new life into its flagging smartphone business. The Next Web reports: There is some credibility to the claims. Microsoft's Lumia lineup has shrunk to just four models, and there's nothing to indicate it's working on a successor. In the U.S., where Microsoft has struggled to shift Lumia phones, it has removed the link to buy them from its website. On the retail side, stores have started removing units from display, and are trying to shift remaining stock by offering steep discounts. Further evidence comes from two since-deleted tweets from Laura Butler, engineering director at Microsoft, who posted "Surface iPhone ;-)" on September 6, and "Surface Phone not NOT confirmed. :-)" on September 7, in reply to questions posed by other Twitter users. Microsoft is expected to hold an event in October, where it's believed it will announce a new Surface all-in-one. As Ars Technica pointed out, this could be when Microsoft announces its new Surface Phone, just in time for Christmas.