The following Fallout-style countdown video, which is free-to-use stock footage, is attached to the listing:
As for what the product is, we could not say for sure. However, with Fallout 76 having launched in November 2018, a brand-new Fallout title is unlikely. That said, a remastered Fallout 3 or Fallout: New Vegas is much more in the realm of possibility. If Fallout-related at all.