I'm not sure there is a 'final destination'. Scores rise and fall frequently-- a lot of it has to do with what people are searching for. If you have previously written about a subject that seems ordinary, and that subject suddenly happens to figure in a current hot news story, searches will make your views and your score rise.
Seasonal subjects like holidays tend to rise and fall.
Also-- you can always go in to an old hub to add content, revise, re-format, or otherwise change it, which can also affect your score.