It looks like the HTC One E8 is coming to Sprint. The video above was found on Sprint's YouTube page and highlights various aspects of the E8, such as its design, size, and speakers. However, the video did not show a release date for the E8.
The One E8 was originally launched back in June, targeted towards parts of Asia and Eastern Europe. It's a plastic variant of the HTC One M8 with a single rear camera. It's specs are also similar to the M8, with a Snapdragon 801 processor, 2GB of RAM, and a 5-inch display.
Source: Sprint on YouTube