Resurrect the Wireless Interface
Until mid 7.5 you could configure a wireless NIC through app-network but this feature was removed. Please re-enable at least for LAN networks using WPA2. For WAN networks, WEP was not secure enough.
The interface needs to be enhanced to cope with multiple WiFi NIC's or a single NIC with dual-radio which declares itself as 2 network interfaces. Hostapd then needs to be change to a per-interface configuration file as the current hostapd.conf can only handle a single NIC (although it could handle multiple NIC's if required, but I think a configuration file per NIC is probably more suitable)
At the same time the interface settings need to be able to configure 802.11n and 802.11ac networks on both 2.4GHz and 5GHz bands. It was limited to only 802.11g.