I started my project with the GPLv3 license, but I haven't released or made available any code related to it yet. As I move further along in my project, I am starting to realize that it is something I could potentially sell and would not the code being made freely available. Since I haven't released the source code at all yet, could I remove the current license and re-license with something else?
edit: The main concern here is the fact that the current license is GPLv3. Even if I change the license now, will the old version of my project be considered to be licensed under GPLv3. If so, will the new version be considered a modification of that, and carry the same requirements of the GPLv3 license?