It's not just Akatsuki. He had a pretty good insight on Oro too.
Right after Narutos fight in the valley he knew that Oro had used his body transfer and he knew that he couldn't change bodies for 3 years now.
And that was only hours (or max a few days) after Oro did it.
How he got this kind of Info this fast is beyond me.
"For Feanor was made the mightiest in all parts of body and mind, in valour, in endurance, in beauty, in understanding, in skill, in strength and subtlety alike, of all the Children of Illuvatar, and a bright flame was in him"