What Could Possibly Go Wrong?

So, I've been writing a Mass Effect fanfic for the last 10 years. I'm just finishing up Mass Effect 2 and starting to plan the story for Mass Effect 3. It is fun to figure out what I will change and what I won't. One of the themes in my story is self-care. The main character has a lot of issues by the third game because of overwork. It pisses me off that the game never gives any option but for the main character to just keep doing more. So, I am going to fix that by showing her delegate, like the good leader that she is supposed to be. Another theme I am working on is the importance of free will. I'm setting that up to be really important in the story of the third game. And this morning, I read an article about how one of the problems with the third game is that it focuses on building this magic weapon that will save everyone, taking away the focus from the things that made the earlier games really good, like character interaction. I'm trying to figure out how to move the focus away from the magic weapon back to the characters and interesting solutions. I've got some ideas, and if I can get them to work, it should be super fun. What I would really like is to take all the side characters that I've either made or existing ones from the game that I've written about and find ways to bring them back into the story to do something really meaningful. Since my main character has to delegate, I have a lot more of an opportunity to do that instead of just having everyone work to build this magic MacGuffin. So much fun!!