The boss fight code is about 80% finished. I'm also designing a new skill for Sera that players will be making use of during the fight. Still have pretty much all of the art assets to texture and still need to design the look of the new enemy.
I am also refactoring the entire the very old and terrible character controller code. This is necessary for co-op functionality since I plan for the 2nd player to be able to hop into the game with the click of a single button. It's also needed for weapons/environmental effects that will be able to affect entity movement and other statuses. With the new changes it should be a lot easier to implement new movement abilities and status effects. The refactoring is about 50-60% done.