Phil and Kai have been training for teh majority of the past 2 years. Jay has not.
This leads me to my theory that he'll be SHREDDED with all the stops pulled out - but he just won't be able to complete with as much muscle as them. Nothing against Jay, but he hasn't trained as much as they have. Muscle memory is one thing, but 2 years of coasting followed up with 3 months of kickin ass, I dunno... small and shredded and good enough for #2, although after pre-judging the story will be "Wow, Jay is smaller.... 6th or 2nd?"
Due to his legacy, it'll be 2nd.