I recall a quote from Robert once that went "I'm not known for my onstage acrobatics. " and no i do not think there new music is prog rock. Slower, yes, but i don't see them getting into 1 hour jams a-la yes, grateful dead etc... Robert also warned us multiple times the new material is "dark" I'm 59 and i couldn't stand on stage for 3 hours. Yeah you get slower when you get older but they are still very tight and the concerts are quite enjoyable.
