I've had to correct this far too many times than is reasonable. After talking with Otter, here is the latest correction on how Steam is being handled:
Steam's future content will be released in bundles as Seasons. Each Season is made of up 3 Chapters and is considered story complete. That is to say, when you buy the game on Steam, you get the story content that is in it at the time, but will not receive future
story content (such as the upcoming Chapter 4) for free.
Season 1 (Chapters 1-3) exists on Steam currently. Season 2 (Chapters 4-6) will exist on Steam when those are complete and will be a separate purchase (existing owners will get a discount but it will not be free).
I do not know nor am I interested in knowing the expected total price of the full game on Steam.
I am not happy that I was made to believe and say the wrong thing, and I apologize to anyone who may have purchased the game as a result of me stating that you should receive free future content updates. If you have further questions regarding this, please do reply to this thread with them, but I'll be leaving it to
Blue Otter Games to answer them.