Boy those kicks hit hard and are mixed perfectly. I love how minimal it is, and the shaking hats really add some great atmosphere along with the bass.
I do think some vocals would do this track well, maybe even some high-end chorus/choir arrangements/sections. It would fit the mood of the track and add another layer of depth to kick things up a notch.
In all honesty, I don't love the synth that gets introduced carrying the main melody/chords. It sounds like it's not quite refined yet, and needs a little something more in my opinion. It sounds very flat, and has a large presence in the mix that takes away from some of the other elements.
Incredible track in terms of mixing/mastering. I loved the minimal vibe at the beginning, but I think it changed when the new melody was brought in. It just seems to be missing something more - maybe an arp synth over the top, or some vocals, I'm not sure. But it's definitely on the right track. I would say if you're going to stick with a minimal vibe I would take out the main chords, but if you're gonna head in the more 'house' direction I'd add some more elements.
Would love to hear the full version when you're finished!!