I think VG Chartz users are overestimating the Week 1 sales similar to the users expectations for Killzone 3. Although the userbase has grown most new casuals will not pick this up right away. I anticipate a 2.4M opening week WW.
PSN: Saugeen-Uwo Feel free to add me (put Vg Chartz as MSG)!
Nintendo Network ID: Saugeen-Uwo