I wasn't sure what happened to Sinon after his 'capture' by the Trojans. The character doesn't seem to be mentioned after the big scene. So I don't know if Sinon will be joining in all the rape and enslavement of the Trojan women and girls, the massacre of their sons.
According to Wikipedia Sinon is mentioned in other literature. Not in a good way
In Dante Alighieri's poem Inferno (Canto 30), Sinon is seen in the Tenth Bolgia of Hell's Circle of Fraud where, along with other falsifiers of words, he is condemned to suffer a burning fever for all eternity. Sinon is here rather than the Evil Counselors Bolgia because his advice was false as well as evil.
The word "Sinonical" was coined by Lewes Lewknor in his 1595 work The Estate of English Fugitives.
William Shakespeare referred to Sinon on several occasions in his work, using him as a symbol of treachery. For instance, in Cymbeline Imogen says to Pisanio, "True honest men being heard, like false Aeneas, / Were in his time thought false, and Sinon's weeping / Did scandal many a holy tear" (Act 3, Scene 4). In Henry VI Part III, the Duke of Gloucester says, "I'll play the orator as well as Nestor, / Deceive more slily than Ulysses could, / And, like a Sinon, take another Troy" (Act 3, Scene 2).
In Chapter 4 of George Eliot’s historical novel Romola, during his first full day in Renaissance Florence, Italy, main character Tito Melema is asked by a painter if he would model as Sinon for a canvas depicting Sinon deceiving Priam, shocking Tito at the implication and foreshadowing his treachery later in the novel.