Incredible, and exciting! Thanks Jonas and simba!Nonob88, thanks for the photo - that gave Simba and I all the info we needed, I think. Simba is correct: a laminar nozzle has a large chamber at its base which contains the devices that steady the flow to aid in producing the effect.
What we have here are, yes, fountains! Simba's notes are, as usual regarding this stuff, correct - look close, especially at the one behind the arbor - you'll need the high-res copy to see it: each unit has a lower LED ring, a Lumen360 type, surrounding a brass nozzle. These are straight, vertical smooth-bore nozzles. On top is a bronze grille plate, with a central hole and a radiating-spoke outer zone. The black ring in the planter makes sense now; these will definitely produce more or less overspray, and that barrier will keep the soil from eroding too quickly from this overspray. Look at the Fountain-In-A-Can page to see an example of the basic effect of a smooth-bore nozzle. The units in the planters have components slightly similar to Fountain-In-A-Can, but they're larger units.
So...yes. First, confirmation on LEDs in the globes... Second, there are now fountains throughout the viewing area. Not only will colored light flow out into the area, but jets of brightly-illuminated water will rise out of the planters!
...did I already stress how incredible I know this is going to be? Those countless people who have not been following the construction and have no idea what's coming are going to be absolutely floored by this show. Every last bit of it is going to be jaw-dropping, mind-blowing Disney-style magic, and I think this'll be the boost for DCA, with improvements for everything else flowing out from this epicenter.
Only downside to this post: I can't tell which Fountain-In-A-Can nozzles are in use in the play fountain. I don't know the product intimately; I don't know how many of which effects can fit together into a single pod. They've already been IDed as having fan and vertical jet effects, and any or all may have mist, but the rest could be any number of combined effects. Time will tell.