I've been doing some research on the Russian forums with Google Translate and I've discovered a few things:
Enemy ships now chase and attack like normal units.
There are six bosses in total and they are evenly distributed through the game.
Overall game is somewhat shorter. Maybe 30 hours of game time and 300 enemy stacks (depending on how thorough you are).
New areas need to be unlocked with special maps.
All of this sounds really promising.
