I'm going to attempt to come up with reasons why you're wrong :-P
The photographer didn't take many pics at all though (no City, Exo-Force, Space, etc.), so the fact that he didn't take a picture of a set isn't evidence that it wasn't something new.
I searched the net, and there appears to be only two galleries on the internet that show the LEGO from the Toy Fair, and those are the two galleries on Brickshelf that we've seen. So we haven't gotten any pics of the set because we've barely gotten any pics at all.
Well I know for certain that sets 7663-7666 will be released, so there will be something coming out, even if it wasn't shown at the Toy Fair. But why would they show off set 7664 but not set 7663?
Obviously this is mainly speculation, but I hope that I'm right (and that the sets are shown at NY Toy Fair this Sunday).