tothergnome :
That's a perfect build. From what I've heard the 1080 will be an excellent GPU, so that's what I recommend for your GPU.
Mekkra :
From what I've heard, an i5 will bottleneck the new 1070 and 1080... If you really want any of those, you should keep that CPU. If you really can afford it, you'll get a beast CPU!
Yeah, i already have a i5 4460, but i'm also planning on playing intensive games like Arma 3, Star Citizen, some of the Total War games. As for GPU's, i kind of want to wait for the newer GPU's. Either VEGA or a GTX 1080 ti. So i'm changing my plans from "a few months" to "less than a year".
Also, getting the expensive motherboard is because i want to overclock my CPU and GPU. Also, it looks sexy