It's hard to predict. The ending of a manga often depends on various factors like the story's development and the author's plans. Maybe we'll get more clues in the coming chapters.
Yes, the Zom 100 manga has reached its end. It had a run and now the story has been told. Maybe you'll find some spin-offs or related works in the future, but for now, the main manga is over.
The ending of Zom 100 manga is a mix of satisfaction and a touch of mystery. It resolves the main conflicts but leaves room for interpretation about the future of the characters.