I was at the screening in Toronto. All I can say is that I really hope that they release it. Thriller 3D is unbelievably good on the big scream with the great sound. John Landis was there as well as Branca and the director of the Making of Thriller. Branca was actually asked if they are going to release Thriller 3D. I was seating directly behind the row reserved for Branca and other guests and saw clearly that they motioned to him not to answer. He dodged the questions. He was also asked about Dangerous 25 and joked that it is a bit too late, may be Dangerous 30 some day. He was asked if the Estate plans to restore (probably in 3D) other material. He mentioned "German concert" which I guess in Munich and, to my delight, Ghosts.
To summarize, I think this is absolutely great that the Thriller is restored to the former glory. As to the 3D, there were moments where I though it was too much, but overall it looked practically perfect. I do hope that they release it.
And sorry for my quite broken English.