Huawei has earlier announced its Nougat beta program for its Honor 8 users in India and UK , and it seems that yesterday Huawei started the roll out to those registered under the program. If you had registered for the Android 7.0 beta, you should see an OTA hitting your device pretty soon. The update also brings the EMUI 5 custom skin upgrade with Nougat.
Though, even better news is that you can download the Honor 8 Nougat beta firmware, and install it yourself. Link to download page and how to install guide is given below.
Note: Before trying to install the Nougat beta firmware on your Honor 8, know that the base software version required to be present on your device has to be FRD-L02C675B140CUSTC675D001, or B140.
The Nougat beta firmware comes as version FRD-L02C675B301CUSTC675D001, or B301. So, this is essential Marshmallow B140 to Nougat beta C301 update. If you are not on B140 already, then the update will fail.