Humans are wild and unpredictable. I can understand why people might want to reserve judgment in this case, but I am guessing that things will change after the preliminary. It's already gotten less "BCK is innocent" since the PCA, of course.
I am confident that BCK will be convicted and the strands of evidence and the story that could be told a trial will hold even more shocking facts. OTOH, he might wiggle out through a plea bargain - not every criminal is required to tell all to get a plea bargain, either (I believe Rader was; DeAngelo wasn't),
I still think BCK wants to have his memoirs out there, even he has to use someone else as main author - that person will show up.