User blog comment:Httyd fanNightFury/httyd future/@comment-38467167-20190211224726/@comment-24413325-20190211225250

Most of the info about it coming in 2019, and having been in production since 2017 is from Berk's Grapevine. The other info is just made up, or anything that was already know. Sadly, none of them is new info.