12 million FW, 1.5m lifetime.
Seriously, I believe it'll do pretty well overall. I'd say 2m is not out of the realm of possibility. It should be near 200k in US pre-orders by launch, so probably no more than 350k FW overall in the West unless Europe really latches on. With its launch, it should dismiss the issue fans seem to have with thinking it won't have a deep story, and with how weak Nintendo is gonna be early next year I'd like to think it'll have legs even if it's not gonna take off like Splatoon.
You should check out my YouTube channel, The Golden Bolt! I review all types of video games, both classic and modern, and I also give short flyover reviews of the free games each month on PlayStation Plus to tell you if they're worth downloading. After all, the games may be free, but your time is valuable!