Wade: I have flashed stock rom (non carrier branded) onto my VFNZ S3, just received OTA update this evening, update released 6th August (UK time) and i now have it two days later so gotta be pretty happy with that
My back stop position is that if I need a VFNZ specific rom due to software issues i will re-install at such time so no real risk
I struggled initially to see what your post had to do with Android updates on XT branded phones, but I guess what you are saying is load an unbranded rom and you will get the latest update.....
Edit: added 'branded phones'