The vivo Xshot was announced way back in 2014. While there have been a few rumors/reports about a successor to the device, those were mostly in 2015. Now, a new report out of China seems to have some fresh information on the matter. The report claims that there won't be a direct successor, and the Xshot will be replaced by a new device dubbed vivo X7. Not only this, it also contains a leaked image of the latter. Sadly, there's no information on the specs, although the report does say that the X7 will be made official by vivo by the end of this month. So, if that's the case, expect...
Source: http://www.gsmarena.com/vivo_x7_leaks_in_images_said_to_be_xshot_successor-news-18548.php