Thank you to those who shed a bit more light on this! Very interesting, I will look forward to the fan fests in particular.

The idea that each expansion follows a set pattern is particularly cool to think about, but I don't really see how the tail end of the 4.3 storyline could be anything but a point in their direction of 5.0 which by that outline shouldn't be happening until 4.5 or so.

Until we know where it is we're headed I suppose it's anyone's guess.

Thanks for answering the question!