Russia, Iran and Turkey met during the recent United Nations meetings. They agreed not to let the Idlib jihadists leave Syria in order to go to Afghanistan. Apparently, they will either be eliminated in battle or brought to trial.
This then begs the question what does or will the US and the US-backed SDF Kurdish forces do with the jihadists it captures in the Deir Ezzor region? Will they be brought to trial, or will they be given a free pass to join an Eric Prince mercenary soldier force?
https://www.france24.com/en/20180929-russia-vows-no-safe-passage-syria-jihadists-idlib?ref=tw