>>>So season 3, I think, is going to be about mother and son finding their purpose independent of each other, but also finding out that they are much stronger when fighting the good fight for the sake of humanity together

I agree, this is likely to be the theme, and it's a good one. But I'm curious exactly how "successful" Sarah'd need to be for you to feel like John wasn't coming back to save her. Is it enough for her to blow up some factory and postpone it a bit?