@Strit is correct in that we do not use that package, we use firmware-raspberrypi as so does arch-arm. I looked into this and discovered that arch-arm and our PKGBUILD's has not been updated in over a year. There has been 2 bluetooth firmware related updates done 12 days ago (BCM43430A1.hcd and BCM4345C0.hcd) in the RPi git. I have modified our PKGBUILD so it would pull in those files from the RPi git and pushed a new package to unstable so it will be there when the mirrors sync. Other than those 2 files the others should be up to date.
New package has a .2 extension on the end:
firmware-raspberrypi-6-1.2
This has me confused. Your OP is all about a bluetooth issue but these 2 (43438 and 43455 are patched) files are for wifi chips and the link you posted above is for the bluetooth git and these files do not seem to be there. Is there another separate issue with wifi?