Getting people to charge at home instead of at Superchargers is one of the big efforts for all of us collectively. It means making it easier for that want to have home charging to get it, whether it be in an apartment or condo parking garage or lowering the cost of L2 charging installation. Tesla has done a great job of lowering the HPWC cost. A more robust L2 charging infrastructure should help take the load off of L3 charging, especially in CA where it seems a lot of L3 charging use is not for long distance travel.
Encouraging workplaces to install chargers is another push that needs to be made. There are a lot of people who live in places where they can't have an assigned parking place. Older apartments, small apartment buildings, and some old houses have no option but to park on the street and nobody knows which spot they will get from day to day. These people would probably welcome being able to charge at their workplace during the day.
Now, Model 3 really starts to ramp in Q4. And I suspect the Supercharging plans have been on hold as of late as Tesla has been spending cash on the factory upgrades. As that spend winds down a little, I suspect the Supercharging capex will ramp aggressively in Q3 and Q4.
Tesla may be able to do another capital raise now that the stock price is up. That would set the hair on fire of the FUD crowd, but it probably would help their expansion plans.