Bethesda.net now offers a Perception trailer from Fallout 4, showing off the second element in the venerable SPECIAL system in the RPG series. They also have an article on player freedom in the game's open world, offering a new trailer on the topic as well as a video on customization, crafting & modding, though most of this is footage was shot live back at E3. Here's their accompanying write-up on that last topic:

From building in-game settlements via the Workshop system to creating new weapons with Bethesda Game Studios’ most advanced crafting system yet, to designing mods on both PC and console, Fallout 4 is all about customization. Yes, almost all of this is optional – but now there’s even more reason to explore the expansive wasteland in search of all kinds of handy components. “You rip apart the world, and then you can build what you want,” says Game Director Todd Howard. Watch our new video to find out why duct tape and glue might be more valuable than grenades in Fallout 4.