The pandemic has changed gaming in the short term, so it's hard to say. Those first weekend sales are huge. If that happened a year ago, I'd say it's going to sell 10mm lifetime. But, games are selling exceptionally well right, and will probably slow a lot as things normalize. So, I don't know how to extrapolate lifetime sales out of first weekend sales that are happening right now.
I chose 7+ million in the poll.