Honor's President, George Zhao, has confirmed in an interview that the brand's current devices like the 7X, Honor 8, Honor 9, Honor 8 Pro, and Honor V9 will all get updates to Android Oreo. The 7X, in particular, is of interest, as there's a significant chance that it gets Treble.
https://www.notebookcheck.net/Honor-President-confirms-that-the-Honor-7X-8-8-Pro-9-and-V9-will-get-Oreo.270988.0.html