here is the Bela/BoneBlackWireless dtb.
if you flash the image linked above, you can then put this file on the board on the BELABOOT partition and edit the
uEnv.txt file in there to tell it to use this file rather than the default Bela one.
Then you could download this package (drivers for the WiFi module) and install it with
dpkg -i firmware-ti-connectivity_20161130-3_all.deb
OR you could just wait till tomorrow, as I am rebuilding the image now (with all the above changes) and will upload it on github tomorrow.