I would say the developers leaving isnt really a sign of the game being postponed or reworked. Staff departures happen for a variety of reasons.
However, the voice actor for the villain leaving is very telling. That is a sign that they are moving away from that story arc, which is a clear sign of the game being reworked. Combined with the departure of amy hennig, it is clear that there were some conflicts with the way the story was developing. Going back and reworking the story means there is pretty much no way the game is coming out this year. 2016 seems to be too far, as they can still use most of the tech and levels they designed, just need to rework some of it to fit a different narrative. Holiday 2015 seems to be the best bet for release.







