Uncharted 4 first week sell-through surpass 2.7 million, fastest-selling PS4 first party title to-date in NA and PAL Region

[JRPGfan]

So if we assume a 70% drop in sales rate for 2nd week world wide.
It should be around 3.5m+ for its 2nd week (counting digital sales).

The question becomes how long will its legs be?