All I know is that no amount of captive breeding or inbreeding can make one species take on nearly all the characteristics of another. That being said we are judging from pictures alone, so it would be hard for anyone to make an exact verdict. I'm still fairly certain that it's a Delhezi x Ornatipinnis hybrid.
I suppose that the only way to know for certain in this situation, aside from DNA sequencing, would be to look closely if it has a groove running along its lateral line. If it does then it's a lower jawed species, if it doesn't then it's not. Should be relatively easy to spot in person, by getting the right angle in regards to the light.
Also if it doesn't grow much more then it's probably not a lower jaw species.