As I understand the GP series rules... NHK will not count as one of his scoring competitions. He will receive points from whatever placement he achieves at his remaining scoring event.
MK STILL got an invitation to the GPF with her win @ Skate America. She was further down on the points list, podium placements being all over the place last year got her into the mix.
The same COULD happen for Tim, IF the podium placment for the mens is as varied as the women's last year.
As for the total cost to Tim...who knows, if he ends up winning NHK , he still gets the prize money (and we have no idea what "deals" go along with Oly, World Medalist status. They may well recieve "performance fees" for showing up and adding to the draw of the event.)
As for Tim, I must say that missing the GP circuit didn't hurt him too much. In fact, it may have been the rest after a hectic Pre- and post Olympic season that allowed him to pull off the personal best skate he performed at last years Worlds
My last thought is perhaps the saddest... that the GPF crown almost has no significantstanding, IMHO, as far as prestige anymore. They have not been a great predictor of Worlds or the Olympics. Still some great skating to watch, though. That in itself may be justification enough to support it