This game will blueball you with said three main girl characters. For many updates....
Thanks for the heads up. It's understandable why they would be worried given the amount of time that's passed. Chapter 5 of Polarity is the end of Part 1 (of 2) of the story, so it's bigger than all 4 previous chapters combined. This is why it's taking a long time. Radiant Chapter 4 will actually be out first, which shouldn't be too much longer.