We will definately see a 228kg snatch, but it won't be down to human natural ability. Currently there are some scary drugs in development that will redefine athletic performance if they get into the wrong hands (which they inevitably will).
One in particular, once injected via a virus has the ability to code for the long dormant type 2X muscle fibre (humans have type 1, type 2A & type 2B muscle fibres, but also the dormant type 2X gene). The type 2X fibre is in lay mans terms simmilar in contraction speed to animal fast twitch fibres. The problem with this type of gene doping is that ALL muscle may become super fast twitch, including cardiac muscle, leading to heart failure! Another issue is that ligaments & tendons would be destroyed under such contraction speeds.