Theories on Starting a NEW Civilization and Aliens

I just watched "After Armageddon" on History Channel. It was great, and it posed many possibilities of the fallout world, aside from mutant creatures and such, including medicine problems, people with power, survival, etc. I was wondering what you all think would happen to us; what year, why, who did it, and for what purpose, aliens from other places, and what Earth would be like. I hope you guys notice this blog. I usually am ignored for reasons I dont care to mention......comment on this blog please!