If you didn't know already Killzone Shawdow Fall (PS4) is coming Q4 this year and has been making a lot of buzz. According to VGC preorder chartz Killzone Shawdow Fall is 21 weeks away and has already fetched 140k preoders with 21 weeks to go. Though this game is still far from release it is out tracking many tripple A blockbuster games in the same time period. Although the preorder charts on this site aren't the most reliable and shouldn't be taken too seriously it has been an accurate indicator of first week sales many times in the past. It is also performing better than any next gen game in terms of pre orders (Watchdogs was 92k in the same time period as opposed to Killzone Shadow Fall's 140k)
Here the preorders of some major FPS that are releasing in the same time period 21 weeks before release.
As of Now:
COD: Ghosts: (360) 355k - 13 weeks to go
BF4: (360) 233K - 12 weeks to go
COD Ghosts: (PS3) 178k - 13 weeks to go
Shawdow Fall (PS4) 140k - 21 weeks to go
BF4: (PS4) 135K - 12 weeks to go
COD Ghosts: (PS4) 129k - 21 weeks to go
BF4: (PS3) 127K - 12 Weeks to go
COD Ghosts: (X one) 114k - 21 weeks to go
BF4: (X one) 63k - 12 weeks to go
