It seems that ZTE is prepping a lower cost version of the Axon 7s or perhaps a regional version of it. You can see the new speaker grills on the front and dual camera on the back, those are straight from the 7s. The internals, however, are closer to the original Axon 7. The new phone - known as ZTE A2018 for now - gets to keep some of the highlights of the Axon, including the 5.5" OLED screen of QHD resolution, the stereo speakers and yes, the new dual camera. Plus, the storage options goes up even higher than the 7s - you can choose between 256GB, 128GB and 64GB. But then there's the...
Source: http://www.gsmarena.com/a_zte_axon_7s_with_slightly_lower_specs_found_on_tenaa-news-24834.php