Was there today. Did not snap pictures, but the permanent canopy chargers are all blocked off and the only ones left are the 8 temporary ones. While I was there most were full.
They were digging up all the concrete in the area opposite the canopy chargers (where people would usually wait if they were full), they also have trenching done on the left side. It appears they will be adding probably 4 more spots there and then they were also working in the area further east.
It actually makes perfect sense. They have the space. They don't need to negotiate for more parking spots or zoning or anything. They probably also have the power capacity seeing as it is a large industrial site.
They're shipping out cars very quickly now and especially with the X, a lot more superchargers are going to be needed in busy locations. This is the perfect spot for them to put in 20 or 30.
Also, hawthorne is now gone from the top 10 list inside. I guess the temporary ones don't count towards the ranking.