Nobody, however, is expecting a blow-out quarter. Earnings estimates are down across the board — anywhere from -7% year over year  (according to independent Patrick Smellie from the Braeburn Group) to -29% (Susquehanna’s Chris Caso).

Most agree that revenues will be flat or down slightly, although there’s still a $5.5 billion gap between Caso’s $32.8 billion and the $38.3 billion submitted by the Braeburn Group’s Ilari Scheinin.

In general, the convergence we saw developing in Q2 has started to reverse. In April, the gap between the pros’ and the amateurs’ revenue estimates was just 1.3%.

Now they seem to be drifting apart again. The revenue gap for Q3 has more than doubled, to 3.5%. On earnings, the two groups are, on average, 7.1% apart.

We’ll find out who was closest to the mark in each category when Apple reports its fiscal Q3 2013 earnings after the markets close on Tuesday.

Below: The individual analyst’s estimates, with the pros in blue, the indies in green and Apple’s high and low guidance numbers in red. I’ll run my quarterly Earnings Smackdown after Tuesday’s earnings call and post the quarter’s list of the best and worst analysts on Wednesday morning.