No it did well in UK so i expect the same in usa

I doubt it. It will sure don't sell as good as the main Battlefield games, but it will sell definitely well.

well we wont know till 2016 since this site updates its numbers only once a year

I keep having issues with Battlefield 3 punkbuster. It makes me furious.
If I get randomly disconected to the point that sometimes I spend an hour without being able to play a ranked match with a game I even paid the premium service, I can hardly convince myself to spend more money in a game that hasn't got the appeal of a regular Battlefield.
They are milking the franchise, too much.

Don't count on that. It won't do BF4 numbers because it's a spinoff, but it will still sell pretty well. At least, there a lot of guys on my PSN already playing it. People enjoy BF.