3D2USU and 3D2FU are new calls issued to Dom 3Z9DX and Joanna (ex-3D2ZK). More details are to follow in due course.
The Rebel DX Facebook page says:
We have special Navy permission for going out and sailing but we are not allowed to go on any other island other than Viti Levu due the Covid 19 movement restrictions in Fiji. We are working with Fijian Navy to get permission to go back to Conway Reef. So far Rotuma is on hold same as rare IOTAs.