He might - or he might not. Personally, I obviously wish for the first option, but I'm not holding too much hope for Jon as a singer anymore.

As for the question about the amount of songs getting performed, I'd say 12-15. More than in 2012, anyway.

And now, let's all celebrate the perfection that was the BJ gig at the '12 iHeart Radio Music Festival:

https://youtu.be/41c9xQ3vj6k

In terms of the band's (especially Richie's) playing it certainly was a good - if not great - show, but Jon sounded absolutely cringeworthy for the period. As for nowadays, the JBJ of iHeart '12 would sound perfectly passable for me this year, and that's what really makes me sad regarding the current state of his voice...