As a huge fan of that franchise, I would be very interested in the thoughts of other fellow DA diehards.
Dragon Age Origins is my favorite game of all time. But I think fans are just grasping at straws at the moment (or gathering clicks/views). Bioware has released nothing but some concept art . . . which could mean anything or nothing . . . I find it silly to read too much information into it. DA 4 is still at least 2 years away. I'd rather spend my time playing other games and I'll get excited about DA4 closer to the release.
Have you even seen the video? Or any of the multiple similar videos including a great series of them from Jackdaw? There is way more than just concept art. There are in-game shots and other materials. There is also plenty of commentary from the game's developers and additional bits from subsequent social media posts.
Anyway, perhaps I should word my question differently. As someone who is very excited about DA4, I would be interested in the thoughts of any others who are similarly excited about DA4.