Scope creep: The game. Trailers do look marvelous, but one has to question how realistic it is that all of these complex systems not only work well on their own, but also manage to form a coherent whole. This could become a trendsetting Indie darling - or more realistically end up as a highly flawed niche title that only manages to find a few dedicated fans that are willing to overlook its issues (if it ever releases).
The developers are entirely unknown - possibly unproven - and the publisher's only successful games on Steam are an RPG (Tale of Immortal) with just over 50% positive reviews that doesn't even work if you don't have your system set to Chinese, an action tower defense game (Outpost: Infinity Siege) with a OpenCritic average of 58 and a 2.5D Cyberpunk RPG (ANNO: Mutationem) that is probably their highest-rated title with an OpenCritic average of 74 and 80% positive reviews.
Before I sound too negative, I hope this title succeeds. I would definitely play it a lot if it manages to deliver on even half of its promises. Art style, perspective and setting remind me of the last classic city builder Emperor: Rise of the Middle Kingdom, building mechanics are reminiscent of various Minecraft-adjacent titles and the multi-genre concept isn't too dissimilar to The Guild series. All of this is very exciting, but this is exactly the kind of ambition, possibly overambition, that tends to kill studios.