Well, so much for this story. A rumor circulated on Wednesday in Australian media that San Francisco 49ers running back and punt returner Jarryd Hayne was considering a return to NRL this offseason. On Thursday, his manager, Wayne Beavis shot that down. Beavis said he spoke to Hayne earlier in the afternoon, and Hayne told Beavis he is "definitely staying", and there isn't a decision to make at this point.
I don't know enough about Australian media to say where the rumor developed, but my guess is an NRL executive slipped it out there for one reason or another.