I don't think that they will play just older, and I hope that they don't play Bad medicine.
I think that the focus will be on new songs + their biggest hits....

Livin on a prayer
Its my life
Everyday
Undivided
Misunderstood
Bounce
Keep the faith
Wanted
Born to be my baby
And the most awesome encore eva
Hook me up
The hardest part is the night <------I had to include it!