I know it's also a big deal that Stan Lee, one of the primary figures behind Marvel Comics, has died recently, but for those who read this website, and for fantasy lovers in print and film, this may be more close to home.
https://variety.com/2018/film/news/william-goldman-dead-dies-butch-cassidy-and-the-sundance-kid-1203030474/
Now, I've seen quite a few of his movies, and they were all very good. For us, almost nothing can match The Princess Bride, having entered the modern lexicon of geek speak with quotes and images too numerous to list. It's also a shame because, based on the Wikipedia article of the book, it sounds like he wanted to work on a sequel to it. Now I can't say that it would have been an equal to the original, but I would have wanted to see where he would have gone with it. However you feel about it, he'll definitely be missed.