I haven't seen it discussed, but I haven't caught all of the threads, either. It does hit upon the same question that I have: Why is everyone so convinced that the 'voice' is really Jor-El? Everything the 'voice' has been involved with seems to be pretty out of character for what Jor-El is...
That is a perspective thing. I have seen many show where they do something similar... something 'appears' to happen in a certain timeframe at the end of the cliffhanger episode, only to see that the sequence was actually a little bit longer in the resolution episode. RG