I think that if Jeremy wants to come back for the love of skating, for one last big good bye at nationals, much like Rachael Flattdid,... I think that would be wonderful. It would be his 10th nationals, and I would love to see him skate for himself, not for the podium. The problem is, I am not sure Jeremy is there yet. I think he still wants his glory - and don't fault him for it. I don't know if Jeremy can skate at nationals and be ok with not medaling.
Sadly what i can see happening is him coming into nationals with his head in a good place and doing really well... maybe even wining. But then what happens? If we have a 3 person team and he wins silver (which is the only medal he does not have)... do we send Jeremy to the Olympics again? I think he would have to skate somewhere to get minimum TES. My fear is that Jeremy will likely do very well at Nationals, but I don't think that will be good enough for him. I think if he does well, he will want to go to Olympics/Worlds. And i am not sure i want to send someone who has not at least done one competition that season prior to nationals. I am not sure I want to send someone to the Olympics who just shows up at Nationals.
So if Jeremy thinks he wants to do post season stuff if he does well at Nationals, I think he should skate in the fall. I think skipping the GP and doing a couple of Challenger/Senior Bs would be fine, but if he wants to be considered for World/Olympic teams, i think he would put in the face time prior to Nationals.
As for his coming back in general. Well can he do so and not be in pain? If the answer is yes, then i am all for it. But at Jeremy's age, I think he needs to focus on being pain free, both physical and metal pain, more than coming back to skating.
If his time off has let his body heal, and his body can take it without screaming for mercy, then I like the idea of him coming back. I don't like the idea of pain filled comebacks... especially at his age.