Yeah, Anthem was one of the best selling games of 2019 so far, but it had poor legs/word of mouth and overall a sales failure due to their huge budget. It is a bit premature to call Days Gone a huge success, but I don't see it being a failure/collapse like Anthem either. I guess it will depend if any upcoming game like Rage 2 will steal its thunder or if it becomes an ever-green that keeps selling steadily throughout the year. It could be this years Ghost Recon: Wildlands which didn't review well and wasn't popular with the hardcore crowd, but kept selling like crazy to the casual audience. On the other hand, the hype could quickly deflate and we could be seeing the title selling for half price within the next 2 months. So it is a very good debut for a new IP, but the long term success remains to be seen.