It may be that Mr Sanger has reached the point where he no longer cares about the reprint value. He may have been upset with the fans' reaction to his initial proposal, and given the kind of reactions that people have posted about him over the intervening years, I wouldn't blame him one bit for having an attitude of "they can all rot in Hades, for all I care" because of the statements of so many people on the various Traveller lists and boards.
I've read belittling statements about his livelihood, his manhood, his breeding habits, his genetic ancestry, and so on. I've read threats against his person and his life, and I'm just a casual viewer of the TML and some other Traveller lists. People aren't afraid to be jerks over email (though I'm sure none of our good readers here ever do that kind of thing), and if I were him, I'd have long ago decided that such people don't deserve to have what I control, just because of their attitudes.
But that's my impression of the whole situation. Not knowing Roger Sanger, it may or may not have any bearing on his decisions. But it would affect mine, were I in his shoes.
That said, I still hope someday he opens the door on that material. I just personally don't expect to ever see it happen.
More later,
Flynn