So unlike it was stated, the last update was not the last update.

There's so much new details I can't add it all in a singular paragraph because I don't even remember everything I added. However, I've been refining Act 2 and it is now complete. Act 3 will take a little while as it is a bigger open area than Act 2, however I believe it will be completed by spring next year.  Act 4 is a more linear conclusion Act, similar to how Act 1 is an introduction act that is more linear. So after Act 3 is complete Act 4 will not take a long time, however it will be met with as much care as any other part of the game.