Among other revisions necessary for my story, I've been playing with the idea of giving it a new opening. I figure for a semi-action novel, the opening needs to start with a lot more action (because so far, the action doesn't really start until chapter 2). And last night, I finally figured out how to do that. Or, what that starting action should be. Plus, if I do it right, it should create some additional suspense. Of course it means I'll be creating a new chapter 1, chapter 1 will become chapter 2, I'll create a new chapter 3, and chapter 3 will become chapter 4 etc. But then later on, there's a chapter or two that I want to remove from book 1 and put into book 2 (with some changes, of course. But I won't get to that until I've finished this one.)
I haven't made any changes to the story yet. So far, I've just been taking notes on what new ideas I come up with as I've been typing my novel. It's probably a good thing too, since I don't know if I'll keep all the new ideas I have, or if they even make sense for the story. But once I have my novel typed (which will hopefully be by either Thursday or Friday), I can make a list of all the changes I want to make a list of all the changes I want to incorporate, so I'm not adding unnecessary changes.
I still have a lot of work ahead of me, but I'm still pretty excited about all the work I have to do.