More images of the HTC One M9 seem to have leaked ahead of the HTC flagship's expected reveral at Mobile World Congress 2015 in Barcelona. The design is rather iterative, building on the curvy all-metal language established by the One M7 and One M8 before it.

A few days ago, the German retailer Cyberport posted an early listing of the HTC One M9 that included a number of renders of the smartphone. While the listing has since been removed, once something's online it's nigh impossible to bring it back in. You'll see a few of those suspected press images below.

Today, noted Internet gadget leaker Upleaks uploaded a couple of additional press images of the HTC One M9 on his Twitter account:

Of course, this is just a look at what the phone is expected to look like, which is notably different than the two glass-fronted designs for the M9 that leaked out a month ago. Where there's smoke, there's fire, and right now there's a lot of smoke in the vicinity of this more evolutionary M9 design. We'll know more for sure in a week when HTC makes it official — and we'll be there at MWC to bring you all the latest on HTC's new flagship smartphone.

Source: Upleaks (Twitter), Cyberport