It will still depend on your usage.
Given the faster speeds, you may be inclined to download more content or stream and watch in Full HD or 4K. This will then consume more data. But browsing the same content and playing the same games should in general consume the same data volume and affect your data allocation in the same way as it was on LTE.
The main differences are the faster speed and lower latency will give a better experience in both media streaming and gaming.