It was hinted at via an icon in the first Direct, but this is more blatant, we getting Cosmetics
seen from Argentina

seen from Maldives

seen from United States
seen from Germany

seen from United States
seen from United States
seen from China

seen from United States
seen from United States
seen from China
seen from Philippines

seen from United States

seen from Canada
seen from China
seen from United States
seen from China
seen from China

seen from Canada
seen from United States

seen from Malaysia
It was hinted at via an icon in the first Direct, but this is more blatant, we getting Cosmetics
Kirby Air Riders Direct Deep Dive
First up, new and returning enemies
The fire pixie is new and easy to spot on a first watch, the other is the returning Balloon Bomber
Also returning is Pichikuri, though not showcased, theirs and Chillys appearance give the possibly of Spike and Ice returning
This Dino Armadillo/Pill Bug is how we'll be getting the new Steel Ball Ability
Big, stupid looking fish from the background
Looks there'll be boss/mini-boss enemies
Next, new courses
The standard raceway you've seen throughout the Direct is Oval Circuit, one of the Stadiums
In one segment. instead of abstract art on the billboards, these are shown. The first one resembles Skyha's windmill, however second one seems new.
These two stadiums do not quite fit the style of any course we've been shown, nor any from Air Ride
Lastly, GUI
We seem to have some kind of currency, but what would we spend it on? My guess...
Seeing that at 1:02:50 that there was two empty parking spots with one being a between the Special Warp Star and the Legendary Machines, and by comparing this list to the gummy room section that also had "Whale Star", I've found what the other Special Ride is
Looks like they’ve secretly showed off 3 more new Pokemon besides Farigiarf, a mouse, and green bird, and an ore.
Edit:
I’ve also found that the engine pokemon has a pre-evo, a piston
We finally know the identity of this wonderful mascot who has appear in background of many trailers, and his name is...
... The... Ball Guy.
I honestly thought he was going to have a better name than that, but none or less I'm still excited see more of him, along with everything else the Galar region has to offer!
Welp, it doesn’t get much clearer than that.
*Bonus fanart I just finished
Here’s a good pic of the dart fish Cramorant spits out.
At first I thought it was a shiny but look at the hair pins. I think Alcreamie has different forms like Flabébé and Minior, and judging be its Gigantamax form there's also a star, heart, and flower hair pin.
Edit: Wait it says it later in the video on the Pokemon channel they come in different flavors. They didn’t say in the Direct.