I have always wondered about this theory. The USS Tang, which Admiral Kane commanded after his stint as XO on the Wahoo, was in fact lost in that fashion (with Kane and a few others surviving to become Japanese prisoners). I always have wondered if he was "projecting" the fate of his own boat onto the Wahoo. Maybe now we will know.
Nothing we will learn, however, will ever take a thing away from Morton and his crew or from Admiral Kane and the men of the Tang. The Wahoo and the Tang and their people will always rank among "the special ones."
From what I can tell the water depths are very shallow in that strait, under 200' which gives very little room for a sub to hide.
I'd put money on there being an expedition to film the wreckage, probably have to fight the currents though.
John Chatterton theorized the same demise for the U-869. Perhaps a common fate for those "still on patrol".