Salmons is six years older than Deng. If Gordon continues to be a 4th quarter hero in the playoffs, I could see it adding pressure to Chicago to re-sign him. But I think he's most likely out the door.
It wasn't that long ago that I was reading Chi considered Deng "the franchise". Of course, that was before Rose. Still, I'd find it hard to believe that they would be willing to drop him as a salary dump.