Hype and marketing for the Moto X4 are picking up speed, so there's a chance we may be getting it in the near future. Press renders of the X4 have surfaced, giving us an idea of what colors we'll be getting it in.
https://www.notebookcheck.net/Press-render-of-the-Moto-X4-reveals-its-color-options.239800.0.html