It would need 234,841 units per week in order to be up 1 milion YOY.
It's gonna be tough!
It wont be that tough, this week was 187k and it should consistently rise for the next 3 weeks before have a moderate drop the week after that. Here are the last 4 weeks of the year in 2017/2018.
Total-790k (just under 200k/week)
Total-1015k (just over 250k/week)
Even if not as high as 2018, it should be comfortably higher than 2017. Also a big December game isnt necessary for a huge holiday, look at 3DS sales in 2012 where the big holiday title released in early Nov.
When the herd loses its way, the shepard must kill the bull that leads them astray.