Oda talked about creation of Devil fruits

Where devil fruits come from exactly remains a mystery. Even how they work remains a mystery. 

Finally, the fans asking so many questions from Oda about Devil fruits got a answer from him.

He said he's gonna cover the topic of devil fruits soon in series.

According to Oda, a "certain professor" will explain the complex mechanisms behind all of the Devil Fruits in the series at some point in the future.

Now the question is who will be that professor?

Maybe Vegapunk! as he is considered most intelligent doctor of One Piece world, also he was working on artificial devil fruits which tells he has great knowledge about them.

Or maybe any other professor.

What do you guys think?