There is no such things as asking feedback too early. You might think that you should have something concrete to show before asking others opinion.
Don't wait that long. Just as soon as you have an idea go and ask somebody how does it sound. You might save yourself a lot of time not doing all those bad ideas. Or your idea might be good, but a bit off. It's good to correct the direction from the start. Much easier that way.
Telling about your project to others not only gets you the feedback but it can also give you people willing to help you in your project. You don't have to do everything by yourself.
Maybe you don't even have to do anything. It doesn't have to be you to make all those ideas into reality. You can't do them all. So let them go, share them with others. There might be people interested in doing them.