HTC just sent out press invites for something they are calling the “More than One” press event. The show will occur on April 8th in Beijing, China. It's quite obvious they intend to reveal the HTC One M9+ device, and the press image above even reflects that.
Previous leaks have pegged this device to have a 5.2-inch Quad-HD (2560 x 1440) display, 3GB of RAM, a 20 megapixel camera, and perhaps a MediaTek 64-bit Octa-Core MT6795T CPU. A version of it could end up with the Qualcomm Snapdragon 810 as well. We will keep you updated with more details as they arrive.
Stay tuned for a separate story coming up soon that will include even newer leaked photos of the device. Here's our dedicated section for the HTC One M9 and HTC One M9+: HTC One M9 and M9 plus Android Forum at DroidForums.net