Destiny will beast this year and outshine CoD =D not that Activision care, its a win either way =(

I think Destiny is going to be the biggest new IP of the year and is going to move a lot of copies.

And it still won't come close to CoD.

There's no stopping the dudebros/kids.

I would say CoD, but with a new gen starting I think people may be ready for something new. CoD may take a big hit and the other shooters may get a good boost. I could CoD, Destiny, or titanfall all competing closely. But probably CoD

COD or Destiny, most likely COD.

Call of Duty will sell the most. Destiny should do well, as will whatever FPS EA brings out this holiday (Battlefield or Battlefront), and Titanfall may rack up a high number of sales throughout the year if word of mouth drives more and more people to buy the game, but none of these can compete with CoD.

CoD will sell the most, followed by Destiny and then Witcher 3.

Calladooty. Funny thing is I think it's the biggest "kids" franchise. 

Jeez I'm not a fan of the series either, but people need to chill with the CoD player hate. So petty.

Anyway CoD will obviously come in first. Fifa will be in second. Third place could likely be a close one.
I suspect Destiny, Watch Dogs, and the next Assassin's Creed will all be neck and neck by the end of the year but Destiny will end up being number 2.
Titanfall will do really well but a lack of a ps4/ps3 versions will prevent it from keeping up with the other games.
There really isn't anything else currently announced that will sell over 5mil retail.

Witcher 3? No. The whole series hasn't even hit 2 million retail.