It was canned mostly due to creative differences between Jhonen Vasquez (the creator) and the Nickelodeon Execs. Decisions were made about the show with little to no consultation with Jhonen and he got sick of it. Eventually the series was moved to a late timeslot and canned due to poor ratings resulting from that.
Scripts from unmade episodes and original dialogue from the unmade episodes are around on the internet though, if you wanted to know what was in store for ZIM. Apparently a TV special/movie called Invader DIB was planned where Dib goes to the Irken planet, or their headquarters, or something..... more.
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.