MediaTek has unveiled its new silicon for connectivity at CES 2019. This chipset is compatible with next-generation WiFi (Wi-Fi 6, or 802.11ax) and also delivers Bluetooth access points. It supports 2x2, 4x4 and multi-user MIMO (MU-MIMO). It is also flexible enough to adapt to any changes in the new WiFi standard before it becomes official later this year.
https://www.notebookcheck.net/MediaTek-reveals-its-new-connectivity-chipset-with-the-latest-WiFi-standard-and-Bluetooth.392926.0.html