The joy cons, understandably, don't have analog triggers in the trailer. They could be incorporated though, since the triggers sit on a raised platform, Nintendo could easily put in some movement space for an analog trigger inside the housing.
The pro controller also doesn't have them though. It's a bit hard to see, but the solid plastic trigger area is visible on it at 2:43 in the trailer (the one the girl is holding).
I realize many games don't really need them aside from racing games, but it would be nice.
Discussion started at here by Shankovich