Number one is a bit weird. John is obviously alive in this timeline so does Kyle really need to be sent back? John is already born and alive. This self fulfilling kind of time shit is what makes storylines fall apart. If Kyle isn't sent back in this timeline would John disappear in a cloud of smoke?
Number 2 is also a bit off. Remember the flashback (flashforward) scene in the first movie where the dogs are barking at the Terminator when it enters the bunker? Iirc that one didn't look like Arnold. I think it was the scene where at the end they show Sarah's picture on fire.
Tissue under an endoskeleton? :\

