Looking at what has been and may or may not be possible, let's think about the festivals as someone mentioned. Considering they said it would be difficult to change existing saves of the worlds we have now, then does this apply to spawning seasonal festivals? It might. That might mean they would have to build a new world or destination where any type of festival could be held. I mean as someone mentioned look at CL and it's problems with spawning festivals. I don't think they would want those problems in existing worlds and or messing up existing saves. So, they may have to build a new world if they have any festivals at all. It might be too much trouble to try to get all that to work correctly or maybe no festivals at all this time?