Meh, the truck shown was CGI/VR, and there was nothing new shared (unless I missed it).
I laughed at the reference to the mid-gate as "game changing". Do they seriously think we don't remember the Avalanche? Heck, this vehicle even LOOKS like the newer version of it!
I was disappointed in the Livestream. I couldn't find anywhere to watch it other than Twitter. I asked a few questions, but they weren't answered. They guy didn't have a lot of answers and I thought we would actually see the truck, not a CGI/VR.