Benioff and Weiss brought Game Of Thrones, based on George RR Martin’s series of fantasy novels, to the small screen with unprecedented success.
The show proved wildly popular throughout its eight-year run, which came to an end earlier this year.
Game Of Thrones has so far received 47 Emmy Awards, which recognise excellence in TV, and is expected to add to that total in September after its eighth and final season earned a record-breaking 32 nominations in July.
Benioff and Weiss are currently creating, writing and producing a Star Wars trilogy and are set to adapt prison break drama Dirty White Boys for Disney.
In July, the pair were due to take part in a ComicCon panel event, which had been teased as a “triumphant celebration” of Game Of Thrones.
But with just days to go, the creators dropped out – with no explanation of their reason for doing so.