To me, it seems like they're adding too many attachments, no recoil, and just making the game just more arcadey. I know I'm going to get flamed for even suggesting this, but I hope this doesn't turn into another Rainbow Six Vegas 2, where the first one generally had no gameplay problems, but when the second one came out, they tried to add too much stuff, and the game ended up being worse in many people's eyes.
I mean, most of the fans are scared that the game is heading in the wrong direction. First Dual Wielding, now throwable knifes, and just the overall flashiness. I kind of wish IW would release a video just to dismiss our fears.