Once you get to a squat about 1.75x your BW, you can add some low level plyometrics in to work on the SSC. Keep volume very low, and stick with stuff similar to your vertical at first. Just by learning jump technique you could probably add 2-3 inches on your vertical. Also, work on Depth drops from various heights, focusing on eccentrically stopping the downward force as quickly as possible. When you are close to 2x your bodyweight, depth jumps will improve your speed between eccentric/concentric phases enabling more power. Learning the oly lifts can't hurt either, there is a strong correlation with their use and improved vertical height.
Once you are looking for something more functional than your vertical (Few people are given as optimal conditions as standing directly under a vertec or Bball rim), work on higher level plyos.
If I were to rate a progression, this is how I would do it, ie. how you should periodize.
Limit Strength>Speed Strength>Power
Now, I do not agree with this at all, but apparently it takes a large length of time for your limit strength to drop siginificantly with no training. So, rather than train just one in each period, what you will do is make it a focus. So you will train all 3 to some degree in each cycle, but the focus will be on only 1. So, you will have low volume, low intensity plyos in the first cycle as well as some speed strength work, but those volumes will not ramp up until their particular phases. Don't just change on the fly either, gradually work the volume of power/speed strength up, and slowly drop volume of limit strength, and I would leave intensity very close, probably even undulate around 80% for the strength work. HIT is good for maintaining strength so you may even be very close to that neqar the end for limit strength work. Intensity of the plyos will increase, but you will reach some point where too much, too hard will be too much, just make sure that when you see a significant drop in performance, the plyos end for that day.
I know this is all a bit down the road, but some like to know exactly where they are going and you strike me as that type.
Oh, BTW, I would certainly add sprinting rather than slow ass runs since it is more explosive/plyometric in nature.