I've seen Elvis many times and (from my experience) when he's not directly promoting a new album you have a better chance of hearing old stuff. This is just a brief, two/three week tour that I think he's doing to partially promote the new reissues.
So, I think he will do a few more "older" songs than he usually does. He'll still probably do several from "The Delivery Man" and "The River in Reverse." He'll do a couple well-chosen covers. And he'll do the old war horses: "Alison", "Pump It Up", "Watching the Detectives", probably "Radio Radio" and/or "Clubland." After that, who knows?
Brian