1.5 years, 8K views later…
You only option is to keep the station and run an EoIP running over it to bridge the Wi-Fi.
http://forum.mikrotik.com/t/using-wifiwave2-to-bridge-two-audience-wirelessly-thoughts-4-address-mode/153357/1
(note: VXLAN shown, but it has more overhead than EoIP- same steps, just create EoIP interfaces instead of VXLANs)