the idea sounds good, but you should really work on it until it has actual content before you release the next version, this way not only does it allow people to really form an opinion on it, but it also gives you a better idea on how long how much content takes and therefore you can give the people an idea on how long they jeed to wait in between updates which is far more important than you may think
also while improvement is important, it's better to focus on the story and content, many games end up unsuccessful or abandoned because the developer focused to much in constantly improving and reworking stuff, also important you should already focus on how the story goes and don't focus too much on what direction some people want it to go, most of the time the initial idea and concept is the best and by really writing out the story from the beginning you get far more consistency and the story overall will probably feel better, of course the details and the way you tell the story can change and improve, but the overall foundation should be something you try and plan out early and try to not get to distracted from a few people telling you how the story or characters are supposed to be