Parmandur
Book-Friend
The Ring of Winter was a major focus in Neverwinter before it showed up in ToA: "tying in" doesn't necessarily equate to spoilers (though many people correctly deduced that the next AP from that time would be in Chult, waaaay before any announcements).I don’t see any way Wizards would let a third party leak their next storyline. The games/books/minis make events to coincide with the hardcover releases, not to spoil them. Just not good business.