While celebrity cameos are far from unusual in big movies, Stallone doesn’t have the history in these sorts of films for a random cameo to make a lot of sense.
We’re wondering if somebody got their wires crossed and when they said Stallone was playing a Raveger, they actually meant Reaver, as Starhawk is historically a member of the Reavers of Arcturus.
While it’s difficult to gauge the authenticity of the press materials, we do have to say that this certainly does make more sense as a potential role for Sylvester Stallone.