One thing Im convinced about the conference was supposed to be after results had been disclosed. There is just no way NWBO will present anything in their quiet period. I think it was kinda not on MB's radar when he got the email Thursday, got reminded, and canceled.
MB is definitely a co-author as he was in May 2018.
That to me indicates and I'm speculation now I realize that, that they still have not a definite publication date. Could be peer-reviewing which I suspect could be the last details.. we don't know where they are .