According to The Verge, OnePlus CEO Pete Lau has stated that the company will be breaking tradition by not releasing a new T-Series phone in 2021. OnePlus typically has launched an upgraded “T” version of each of its numbered phones every year since 2016.
OPPO
The reasoning behind the decision to skip the 9T isn't clear, but if you've been holding out for one, at least now you know you can stop waiting. OnePlus also has announced a merger of sorts with OPPO, with plans to integrate the companies' operating systems.