Could it be that because of Discovery, they're halting sales of the encyclopedia until the series has finished its first season so that they can include details from that show?
If they are going to do that, then it might be better to have the cyclopedia on a web site. Then it could be updated at the end of each season. It could be free with ads, or you can subscribe for no ads and added content like videos to supplement articles, like the Battle of Wolf 359 as seen in DS9.