I find it funny that everyone has grown so tired of the "greatest hits" set that 9 out 10 of these proposed set lists include every song BUT the hits...haha.
In a perfect world, they would play a 20+ song set...but that's highly unlikely.
I won't go into a set list myself, but I will say that whatever they do, I hope they really promote the hell out of the album...I thought they didn't really do that great a job with SLDD.
For example, I caught U2 on the Elevation Tour some years ago and they played 8 of the 11 songs off of All That You Can't Leave Behind....EIGHT of ELEVEN!!!! That was awesome. That album was chockful of single potential...and I think the new STP record has just as much promise.
I would say this to STP... ignoring the deep album cuts and playing the minimum off the new record will only (in time) solidify the reputation of a nostalgiac act. If you're proud of your new material...show the audience and play the hell out of it. I understand you still have to deliver the hits, but you can find a happy medium, in my opinion. And if setlists are shuffled from show to show, the chances of the same people hitting multiple shows is even greater. And when that happens, the potential for multiple night stands in one location becomes greater....Just my $0.02.