5G folks.
The possibilities that this technology will release is bigger than what people can imagine. I don't know, personally, what Universal has up their sleeves, but I know of quite a bit of technology that is on the cusp, waiting for 5G to be released. With the park rumored to open 2022/2023, that is quite a bit of time to fine tune everything.
I find the open "main street" concept very innovative and could prove to be a big game changer for the industry. I say go for it Universal. Innovation doesn't happen by playing it safe.