I lost my (wonderful) boss literally a year ago to pancreatic cancer, too. I am 837% done with pancreatic cancer. It can go away now, thanks.
As a researcher, as a digger for facts, as someone who rejected party lines and focused ever on the objective truth of a thing, however disquieting that might be for those involved... Gods below, I appreciated that man. I don't have his whole bibliography. Besides his making-of book for Aliens, everything else I have is his Star Wars stuff. And I mean everything. Revenge of the Sith on. The Blueprints, The Star Wars... I even saved the full version of his account of the sale of Lucasfilm to Disney before he got cut off, to make sure it never completely gets buried. That and the suppression of his making-of book for TFA. It's stupid. He's one of the strongest allies Star Wars has. Those who have a problem with what he writes should probably take a look at themselves to figure out what they did wrong and why.
To say he will be missed is like saying the ocean is wet -- accurate... but way too inadequate.