The street lights & other "smart street" stuff would be interesting.
I can't wrap my mind around what they really think they're going to do with the Skyway. Not this high level fluff crap. If they're doing this in 2023, they need to have the vehicles they're going to use - that design - undergoing serious testing right now.
To date, I haven't seen anything from JTA that touches on how the system will work and testing that design. And you need to have that before you can have testing.
If this was something that could be bet on, I'd bet on them axing the hybrid skyway portion.
The Skyway conversion component of this that appears to be the most expensive, challenging and puzzling for the use of small AVs, IMO. If the vision of the community is to densify downtown, then the selected mass transit mode will need to be able to have the long term capacity to do so. Especially, a system featuring an elevated fixed guideway. What's proposed appears to have less capacity than the Skyway.

The technology under consideration could also be described as a driverless minivan with a max speed of around 12mph. Maybe it's something different a decade from now, but we're not there yet. So sharing lanes with regular traffic removes many of the safety benefits and likely leads to traffic congestion and choke points (see the Lake Nona example, where frustrated drivers recklessly speed around the slow moving vehicles) in an urbanized environment.

The AV technology highlighted so far appears to be a great first/last mile mobility solution because it offers the same flexibility as a car or bicycle by not having to conform to a fixed route. However, that flexibility goes away when they're installed on the Skyway's elevated infrastructure. Now you have a low capacity, slow moving vehicle in direct competition with Lyft, Uber, taxis and any other entity competing for passengers. I love Jax, but no way is JTA (no offense) figuring something out that won't be made obsolete and foolish fairly quickly by the private sector. If you need a ride from TIAA Bank Field to a Southbank hotel, why would you ride the U2C's circuitous route over Uber (which can drive faster and cross the Main Street Bridge)?
So, if we're not looking to help stimulate TOD for a denser urban environment, meaning we'll need to plan for a higher capacity system (or at least equal to the existing Skyway vehicles) and secure 100% dedicated ROW to efficiently move higher volume ridership, I'm not sure of what we're trying to do, regardless of the selected technology.
The questions and concerns I've mentioned above are just a few of many I have that we'll be sitting down with JTA to get their perspective on.