I'm looking at the songs they played in Inglewood (which sadly I wasn't there for as I was in Grand Rapids and Chicago for other stuff). I see 11 songs that would be staples on any given night, three new songs, and two songs that aren't regulars, but I'm sure people would like to hear (Leper Messiah and Orion) on night 1. Night 2 has 9 songs that would be staples on any given night, 3 new songs, and three songs from Ride the Lightning that aren't staples, but I'm sure people would like to hear (Whiplash, Ride the Lightning, and The Call of Ktulu) and one St. Anger song.
I'm not sure what the reactions are when it comes to the instrumentals. I know I was really pumped for Orion once I heard the intro at the 40th anniversary show (I was a bit bummed they didn't play Call of Ktulu on night 2), but I'm not sure how it fares in stadiums. Orion and Call of Ktulu aren't hits, but these songs are still very important to Metallica and ones that people would love to hear live, no?