We are working on a roadmap but that takes time too. Everything takes time and we've been super busy making the server stable and fixing the most urgent bugs (and we still have more to tackle).
We understand you are anxious for new content and for more info and we're working on it and it will arrive whenever it's ready. It's only been one month from the Early Access release and people are expecting to see whole new islands and sets of Temtem already which is something we can't (and we never promised to) deliver in this short amount of time honestly.