The image appears to show a pronounced curved corner that isn't typically associated with Lumia devices, a point compounded by the post telling of a Q&A session with Neil Broadley from the Mobile Phones team, rather than someone working just on the Lumia range. Part of a keyboard is visible, showing an arrow and what appears to be the letter Z. This has been shown before in earlier Asha devices, including the Asha 302.
A new feature-phone with QWERTY keyboard may help the phone producer rebound from its small first-quarter loss. In the quarter, it managed to sell 61.9 million devices, 5.6 million were Lumias, and 400,000 were sold to customers based in the US.