I'll say 800k week one, 5 million one year, 8.5 million lifetime.

Yeah I kinda misread the assignment. We'll go 800k week one, 4 million after 15 weeks, and let's say 9.5 million lifetime.

First week 850k

First 15 weeks 3.5 million (low balling it maybe....)

Lifetime 7 million  (same as the second one.)

my prediction:

First week: 1.4M

first 15W: 6.8M

Lifetime: 8M

Hmm... I'll throw down my optimistic predictions. Which is saying a lot, since there's definitely more uncertainty surrounding this game than NSMB. (Advertise to the max, Nintendo!)

Assuming launches aligned:

First week WW:  1.6mil
First 15 weeks: 7mil
LT: 13mil

First week may seem high, but it is launching on Black Friday week (in America, its biggest region). Thinking that should boost the opener a bit. Otherwise, I'm expecting it to outsell SMG by 30% or so (with better legs), should be fun to watch

13 million, I thought my prediction was optimistic...

I expect that this game is going to have some unexpected sales!

Pfft, I really don't know where this game will go... but here's my edjumacated guess:

Week 1: 1,200,000
Week 15: 5,400,000
Lifetime: 10,000,001 (exactly)

Your optimism makes me happy and I hope you're right with those number :D
And I hope I'm wrong, but:

First week WW: 1.1 million

First 15 weeks: 3.7 millions

LT: 6.34 millions

FW: 1.4 M
W 15: 8 M
L T: 15 M

1st week (worlwide): 1.1 million

15 weeks: 4.75 million

Lifetime: 8.5 million

First week 950.000

15 weeks   4 million

lifetime     11 million

I wonder how much hardware it will sell?  Because it will definitely boost Wii sales

I feel like I'm low balling sales considering the wii install base