As reported by the Digitimes, Google and HTC have sold 2.1 million Pixel phones to date. At the end of this year there will be a new Pixel released, which is reportedly being built by HTC. The excitement over the Pixel has intrigued other manufacturers who are wanting to throw their hat in the ring to build the 3rd iteration of the phone. According to the report, HTC will be competing against LG, TCL, and Coolpad. If Google were to move away from HTC, I think the next logical choice would be LG as they have the ability to churn out a high volume of phones and would be able to provide quality parts that would rival all others in the industry.
Source – Digitimes