Even while we are at work on Project 5, you are always welcome to suggest us your ideas, thoughts and whatever comes into your mind. We appreciate that. The sub-category "Questions, Critique and Wishes" is the place for you to leave all that.
Feel free to post all that stuff, as long as it's constructive and related to Project 5, of course. But, before creating a new thread, please have a look at other threads. Maybe there is already one dealing with your idea/s.