Looks like Windows Central got their hands on what looks like a seriously legit promo video for the Lumia 950. In addition to showing their vision for the phone before they decided to exit the business, it also shows the phone(s) having pen/stylus support, as per the rumors at one point. Another small addition not present in the final product is the persistent cortana reminders on the glance screen.
Overall though, other than confirming the canned pen support, nothing new really.
But damn, what a promo video.