Hellblade 2 picks up brilliantly after the first title, with a recap of the original story for those who haven't played it, and if you have then you'll find this game much the same. There are the graphic and gameplay improvements that you'd expect with next gen sequel but otherwise this game doesn't offer much that's new. It seems that the mold wasn't broken when Senua's Sacrifice was released but it definately couldn't be bettered either. The original grabbed me from beginning to end but I have found myself getting bored at times playing this one, it's as dark and as emersive but this really is why I got bored - I felt that I'd played it already.
If you didn't play the original then get on your own in a dark room and you'll love this, but if you did play the original don't expect anything more than what you've already done.