Some people at Reddit have apparently found what they think is a list of Fallout 4's perks hidden in the trailer.
In the garage scene at the end of the trailer, there is a poster with tons of Vault-Boy images on it, many of these seem to match to perk icons from the previous games
Here is a list of the ones they think they have matched up
http://imgur.com/a/BTmUD
-Commando
-Comprehension
-Gun Nut
-Infiltrator
-Life giver
-Mister sandman
-Mysterious Stranger
-Rad Resistance
-Scoundrel
-Scrounger
-Sniper
-Solar Powered
-Strong Back
-Toughness
All appear to be in Fo4.
*edit*
The
-Grim Reapers Sprint
-Adamantium skeleton
-Bloody Mess
perks also seem to have been identified.