I saw them on the most recent tour. Second last show Brian did.They didn't do The Jack, or the little "strip tease" thing. Brian didn't hang from the bell. I'm sure that's all from age. However, during Hell's Bells, he wore a cowboy hat. He also seemed to put a little more emphesis on the word "Texas" which is where I saw the show. Overall it was great. Seems that they're done now that Malcom is gone, Phil Rudd has his legal issues, and Brian with his hearing issues.
Angus seems to have the same energy. I read rumors that him and Axl may form some sort super group thing. I'd go see Angus solo live, especially if he delved more into the bluesier side of things.