Update 3: The Loop's Jim Dalrymple has confirmed that there will be no iPads introduced at Apple's September 10 iPhone media event.
Impossible. Jim Dalrymple is not an a direct Apple employee thus he can not definitively say anything will or will not be at a keynote. And since Apple does not give keynote specifics before keynotes, we know for fact, Jim Dalrymple has not confirmed anything. He is just taking an educated guess based on the information he has at hand.
His no, is means just as much as if you or I or any other non Apple employee said no. I understand this is a rumour website. And I'm cool with reporting analysts wishes and expectations. But saying someone's educated guess is a conformation of future Apple plans/doings is so very wrong and misleading. Jim Dalrymple very well may be right, his information and sources might be on the money. But it's still only his expectations based on what information he has.
In short, NO ONE and I mean NO ONE outside Apple can confirm (to a 100% certainty) any future Apple doing or products. Saying otherwise disrespecting the people who read the MacRumors articles and partake in the forums here.
If Jim Dalrymple was a directly linked to Apple he would be breaking several NDAs to say this kind of thing.