I think we'll find out as soon as they start hitting the trails with lifts and tires. If it can't handle the traction/torque/weight with 35s (the size I think will be the standard size everyone swaps for off-road) we'll find out quick. Haven't seen Tacomas blowing up diffs yet - so that's a good sign.
I didn't break my 8.2 in 8 years. Im still amazed I never broke a front axle either. I wouldn't have believed I could hammer on the little clamshell as hard as I did and not break it. I bought 2 spare shafts and 2 spare front diffs initially when I got it and never used them. I was proven wrong. So I'm probably wrong here too.