If true then this year became the year Huawei released more than one premium smartphone and could be stolen before other vendors also release their flagship smartphone in early 2018.
The clearest first clue is shown in the left corner of the invitation, which is very clear honor text is one of the variants of Huawei's flagship smartphone. Honor is Huawei's middle-class smartphone line that boasts the capabilities of its camera.
For the camera we can see the next clue in the bottom left corner of the invitation earlier. It can not be estimated what the hashtag meant. However, the two circles can be interpreted as a symbol of two cameras. This allegation is quite strong because the feature is indeed a trend in a variety of the latest smartphone.