It's been linked to in a couple threads, but in http://www.runnersworld.com/race-training/creating-the-ideal-marathoner
Canova says "By two more marathons, he will be under 2:03. In his third, he will race for the world record."
It's the thinking I've had about this. Step by step, he'll get there. Debut, Chicago, WR. Maybe a race or two in between Chicago and the WR, but he'll do it.