http://www.techradar.com/news/is-this-what-the-oneplus-5t-is-going-to-look-like

Right now there's a lot of uncertainty about what OnePlus has planned for a successor to the OnePlus 5 - stocks of that phone are very low, so does that mean we're going to see a OnePlus 5T soon? After all, OnePlus has done the minor upgrade trick before, with the OnePlus 3T bump last year.

Well, here's another little clue that the OnePlus 5T is on the way: renders of the phone leaked to Chinese social network Weibo and posted by GizmoChina, an outlet that seems convinced that we are indeed going to see another OnePlus flagship this year.