If there's any justice in this world, the stat cap will be 255.
I hope 14 doesn't allow itself to get completely out of hand with its stats. WoW's BC was a great place to be, not too much HP and dps, and not too little. 2.0 is at vanilla WoW levels, which is fine with me, and I expect them to grow a bit with future xpacs.
In WoW now my rogue has 420,000 HP, and can easily pull 100k dps. All the gear has 1000+ to all stats. That's just ridiculous, and god help us if we ever get there.