The Hytale team has confirmed on their website that an official forum is under construction, and it seems likely that it'll launch once Hytale releases:

Our official subreddit, Discord server, wiki, and forums are still under construction. In the meantime we welcome you to follow us on the official social media presences below.

Do you think that once these release, the little popularity the HytaleHub and HytaleGuide forums have will disappear?