According to a leak, Halo 5 is going to use the same trick that The Order: 1886 uses. The Order renders at 1920 pixels wide, but not 1080 pixels vertically, instead they're putting black bars on the bottom and top of the screen, increasing aspect ratio and allowing the look of 1080p without the same hit to performance. Halo 5 is supposedly going to do the same, except with HUD elements instead of black bars on the top and bottom of the screen. Maybe Halo 2 Anniverary will be able to pull of full 1080p though, since it's going to be a rebuild of an older game instead of a brand new game.

Hopefully Forza Horizon 2 will have better graphics than Forza 5 while maintaining it's 1080p 60 fps. Forza 5 looked better when it was originally shown at E3 than it did at release, it's believed that they lowered the graphics rather than delay the game. With more dev time, hopefully Horizon 2 can match or exceed Forza 5's original E3 graphics at 1080p 60 fps. Maybe that'll finally shut the Sony fanboys up.

I think he just said 1080p, he never mentioned framerate. Framerate is very important for racing games though, so it'd better be 60 fps, I'd rather see it be 900p 60 fps than 1080p 30 fps.

Like I said, I'd rather see them sacrifice 1080p than 60 fps, the high speed of cars in racing games makes stuttering more common at lower framerates.