Maybe register a placeholder app which you use for development and adding Game Center then when you're nearer competition create the actual app within iTunes Connect and re-create the Game Center set up. This would give you more time and keep your applications name free for use.
I registered a dummy name (real name plus a zero) because I was sure I wouldn't be ready to submit the app within three months. It turned out that I was given 6 months. After 5 months I got this email.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.