I suggest that a day and night cycle (and items related to night time such as a palm leaf bed or a candle; as well, a sleeping feature) should be a priority for the next small update along with the bug fixes. After that, there should be a focus on replayability; such as deteriorating tools (every tool have a certain number of "uses" before its destroyed). The replayability features could be added over many updates. By the way, I, myself, am looking forward to the day and night cycle (and items related to it; as well, the sleeping feature).
P. S: There also should be a player model implemented within in the next few small/big updates and a sprint feature.
-Additionally, a good way of hunting for bugs in the next update before it gets released is to set up a Beta Program where people/players can sign up for it and then they receive beta versions of the game to which they can provide feedback for it. This ensures that the "stable" version of the game remains bug free (or have less bugs than usual). I would definitely volunteer as a beta tester.