John I liked your list of how to make a campaign. It is true many of these things are the single run along the way to a bigger campaign.
One comment though. You commented your bond villain, and then listed the henchmen in several bond movies. Yes these were the heavies that bond had to defeat, but they all had someone behind them who was really pulling the strings. Someone not near as memorable, but the true villain behind the plot.
So I would make one addition to your list. You need to get together the villain and major muscle who will stand between the team and muscling over the villain.