I think there's an end game, and that's the 2018 Olympics (and Jason has indicated that he wants to go to 2022 if he's still healthy). Jason and Kori have always rode on a long-term strategy. So whether he had a quad for this competition or even this season, won't matter much in a few years.
Sure if he wins medals or a few competitions, it doesn't hurt. Like wise winning silver at U.S. Nationals and making the Olympic team was more of a bonus to Jason than an expectation.
Actually it will matter. . . and I really think that is part of why we have not seen it.
Jason has a reputation for consistency and clean programs, start tossing in quads and that could start to hurt his reputation. Jason also does seem a to have a touch of when one thing goes wrong. . . it kinda stays shaky, so while some skaters can still have a hand down quad worth it, Jason may not be one of those.
Beyond that. . . what do you think will happen to his scores when he does add in a quad? If his scores do not go up after adding a quad, there is at least an academic argument against him even doing the quad. Do you think anyone wants Jason's response to quad questions to be "When i did the quad my PCS went down, why would i keep it in?" There almost has to be an increase in scores for him when he does add the quad in.
So why would they add the quad now, during the first year of the quad when he still can at least win Senior Bs, and has a pretty decent chance to at least medal in the grand prix? Hell even not making worlds this year would not be devastating to his career long term, he can add a 4CC medal to his collection, ohh the horrors. The longer he has a reasonable chance at bronze, putting off the quad as long as possible is likely the best strategy from him. The higher he can get his scores without a quad, the higher they will be once he adds it in.
Like you said they are in it for the long game. Logically they should pump up his scores as much as they can without the quad, squeeze every point out of what he has. . . establish himself as earning that type of scores. . . then raise the anti with a quad.
Hell to be honest I wonder how much he and his team are even eying the National title let alone world gold this year. Unless your carer is on the decline, how much do you really want those titles the first year of the quad? Winning nationals this year means he would either have to defend it in 2016, 2017, and 2018 or he loses the national title and has to fight to earn it back. Skating as a former but not reigning national champ is not easy, you can easily be overlooked for the new hot young thing. My guess is a second silver would make them perfectly happy this year. I frankly think it would be a hell of a lot less stressful long term.
It seems a lot of people have this idea it has to be this year for Jason. No, that is not really the case. Frankly I think they would rather establish him as a long term competitor than a flash in the pan that strikes while the iron is hot. I really doubt anyone is going to see him as a wash up lost cause if he skates with joy at worlds but does not medal this year. Strategically, this is a good year to play it safe and consistent. Solidify his reputation nationally and internationally, get the highest personal best he can. Show a full season of "I am more than a viral celebrity" then next year take more risks. If 2016 is a rough year, it would not be the end of the world, and likely would be the best year of the quad for him to struggle. He needs to make it through this season solidly so that he does not get seen as a has been too soon (one of the down sides being the youngest US men's Olympian since the 70s). Once this season is over and solid and people respect him as more than a good Olympic year. He can afford to take more chances. 2016 can be the struggle year. 2017 can be the "Im back bitches!" year where he has become comfortable with a higher content, and can spend that season rebuilding. Then going into the 2018 he can be looking strong and consistent again, with a higher tech arsenal, a good story of struggling to over come set backs, and with a higher personal best to build on from score wise because he milked every point he could this year.
I do however think we are going to see a bit of a shift on the emphasis on scoring over the next quad. My guess is that they will start to peck messy quads more and more and reward more Jason style programs. I suspect this will lead to more skaters doing fewer quads but with more balance. I don't think that we will see a lot of three quad programs by worlds this year, I think we will see more doing two quads/quad+quad combo, and working on adding more other stuff in. I do think we are going to see skaters working to add more transitions and such to make their programs more of a total package. And in the long run that might be good for the sport. The pendulum has started to swing a bit too much into the best jumper wins side. Rather than pushing for more quads in programs, we should be pushing to see better quads flawlessly integrated into better programs. I want to see skaters worry about getting massive +GOEs on their first quad before adding a second quad basically. I want to see skaters not trying to do the most quads landed, I want to see skaters like Max Aaron and Kevin Reynolds go out there and compete to do the best quads, not the most or the hardest. I want to see skaters consistently perfecting the quad, not just landing it.
And in four years. . . we will have a crop of skaters, who knows they have to work on quads, but also transitions and putting on a good program as a whole. I don't think we see as much of a divide in skaters, I think they will be more well rounded as a whole skaters. And yes I think that will make for a good Olympics.