xDefiant is looking like it might fill this niche. There is an open beta in a couple of weeks.
The Finals is also looking good, and had some unique spins such as 3v3v3.
Unfortunately there isn’t much out there that competes directly with CoD anymore, I’ve been looking for this type of game for years now.
For what it’s worth, after playing the xDefiant beta, I can say it’s exactly what I’ve been looking for! Reminds me a lot of CoD Black Ops 1.