We know Jeremy doesn't have the top end speed to keep up with sprinters at 200m (that was evident at Pre). Neither did Alberto in his prime. So, I believe these two athletes are the prototypical short-middle distance runners; Runners who have the endurance/speed combination to be best at events from 400m to 800m.
Jeremy already has that slender physique, which, combined with a touch of endurance training should land him at 800m gold at 2012 olympics. Something else to think about, right now the 800m elite field is average at best (when compared to the gold en years of 1:41-1:42 times). This would be perfect chance for Jeremy for the 400m-800m double gold. (maybe triple gold if he does 4x400).