With quad core chips and 1080p, I'm pretty sure they'll add a pretty basic feature, 802.11ac. The HTC One has it, so does the S4, maybe other phones do. I'm sure the next iPhone will too. But to be sure GDR3 will add this support, please vote in my Suggestion Box/UserVoice thread. Even 1 vote is fine (I prefer more though, ). Thanks.
Add 802.11ac WiFi Support for GDR3 Phones
Add 802.11ac WiFi Support for GDR3 Phones