The latest edition of Islamic State's English-language magazine Dabiq has seen the return of the byline of British journalist John Cantlie, taken hostage by the militant group in Syria three years ago this month.

In an edition devoted to the attack on Paris last week, Cantlie's name and image are attached to an article entitled "Paradigm Shift II", which warns that IS may attempt a terrorist attack on the scale of the September 11, 2001 attacks on the United States.

Some observers had feared that Cantlie's "absence" from the magazine since its March edition was a sign that he had been executed. The article claims that media outlets, security services and experts are acknowledging IS "is a genuine state", before saying that since IS had "established their country and set a new order in place within the Middle East, what happens over the next few years is more up to [IS] than any exterior force".