Awesome news. I was just there last weekend and was thinking about why they didn't have some kind of quick service cart for Butterbeer. Glad to see they've figured out a way to do it.
Agree. I don't see them opening until they can actually open the entire park. Shopping and food wise, there isn't really anything in the upper lot area that you can't get at CityWalk, outside of Wizarding World. This is a good way to add some incentive to visiting in the meantime.