The points for the entire resort are fixed and cannot go up, so that basically answers your question. However be aware that there are fluctuations because of seasons. For example Thanksgiving and Easter vary year to year, but will be high season whenever they do occur.
Also points are different between weekday and weekends, so points within a given month may vary slightly year to year depending on how the weekends fall within that specific month.
And last,
DVC can reallocate points if there is an imbalance. This means that they might raise points for one type of unit during a specific season, but if they do, they must reduce points somewhere else so that the overall points do not increase.
That said, DVC has only done this one time, in 1996 for the OKW resort where they made slight adjustments on how many points it took for some room types, with some going up, and others going down. If I recall it mostly affected the Grand Villa's point structure.