What is the phrase that can replace "Little did he know" in the context of unexpected events?

The phrase "Little did he know" conveys the idea that someone is unaware of significant or surprising events that are about to unfold. The replacement phrase "What was in store for" effectively captures this sentiment as it indicates that there are forthcoming developments or events that the person is oblivious to.

This replacement maintains the element of surprise inherent in the original phrase, emphasizing that there is something notable awaiting the individual. The focus is on the unfolding of future events that the individual has not anticipated, aligning perfectly with the meaning of the original expression.

Other options, while they may imply different contexts, do not convey the same sense of unexpected developments.