It may also be possible to see some latency improvements simply from reduced airtime usage due to various OFDMA and MU-MIMO techniques that send data to multiple clients in a single transmission. Only time will tell how significant those improvements will be (if at all), and in which specific use cases they tend to present themselves. Those gains could just as easily be offset by additional management overhead traffic.
Your key factors on the Wi-Fi side that relate to latency: Medium access/Airtime, Retry rate, and data rate. Optimize those, and your latency should improve significantly.