There may be other things added again in the future. Right now, I am stripping a lot of things out that didn't really add all that much to the game, because I am essentially moving the entire code over to a new backend system, which is a huge project, and I'm not carrying anything with me that I don't need.
Once everything is running smoothly, new additions will be easier than in the past, so there will probably be some. Because I did like the idea of the marks, but the implementation could probably be improved so they are then used more.