I've been thinking back over the games I've put the most time into over say the past year, and they're co-op games. First Mass Effect 3 multiplayer and now Warframe (which has to be the most underrated PS4 exclusive and is well worth buying the console for, IMO. But I digress). I've put more hours into those two than into either Ghosts or BF4, possibly combined. I had a six day weekend last week and, other than an hour or so of Arkham City, didn't play anything but Warframe. I thought about putting in BF4, but never did. Before I could hardly wait until the next chance I'd get to play CoD or BF. Now I just have so much more fun in co-op games. The rush from working with your teammates to beat a tough mission is better than anything I've experienced playing a PvP game, no matter how good of a score I've pulled off.
I spent lots of time playing BO2, and often I'd stop myself and realize I wasn't really enjoying it, I just kept playing because it was the "thing to do". I very rarely rage playing a good co-op game, while in CoD or BF I'm frustrated probably more often than not. Seeing people talk on here it seems like I'm not the only one, but people keep playing anyway.
The game I'm far and away most looking forward to is Destiny: more co-op goodness (yes, it'll have PvP but I can't really picture myself playing it more than once in a while), while the only MP game that attracts me at all is Star Wars Battlefront.
The point of all that is...well, I guess there is no point, I just wanted to talk about it. I'm sure I'll fire up BF4 once in a while, but it's no longer my "go-to" game and I can't see myself getting an MP game on release anytime soon.