Almost a year ago (11 months), the developer of Miracleclast, which implements Miracast [1] support for Linux, wrote:

https://lists.fedoraproject.org/pipermail/users/2015-February/458142.html
On 02.02.2015 19:58, David Herrmann wrote:
> [snip]
> As people continuously ask me about this, I'll just try to answer it
> on the public ML:
> 
> To make Miracast work, we need access to a Wifi P2P API. The kernel
> implements Wifi P2P and wpa_supplicant provides access to it via it's
> ctrl-interface (and I think recently even gained a dbus API). In
> MiracleCast I wrote a miracle-wifid daemon that wraps wpa_supplicant
> and provides P2P to MircaleCast. However, this does not work well in
> parallel to NetworkManager/wicd/connman/... running. You really cannot
> run wpa_supplicant multiple times on the same interface. 

but the key is this:

> **HENCE MiracleCast development is currently stalled until the different > network-managers provide a P2P API**
The NetworkManager devs must have had then 11 months from this message to implement what was needed for Miraclecast to work.
Now, on CES2016 Dell has announced its monitors with MiracleCast support built-in [2]
so there's not even a need to buy a $18 AnyCast HDMI dongle [3] anymore and meaning that Anycast is here to stay and will become evermore important...
Given all this, ARE WE THERE YET? has been NetworkManager been fixed to make MiracleCast a
first-class citizen on Fedora Linux?. Any plans to add MiracleCast to the distro? 
Is anyone even thinking about these issues? why not?
My Windows 8.1 tablet handles Miracast displays seamlessly, I just go to the windows settings -> display and an option appears dubbed "connect to wireless display". 10 seconds later mi main display is mirrored on the big screen TV. Lovely.
Now re-reading the above thread and seeing what a mess this is in Linux, it really makes my blood boil, because things shouldn't be like this.
Is there hope? please tell me there's already someone working on this...
FC
[1] Miracast definition (wikipedia)
https://en.wikipedia.org/wiki/Miracast
[2] Dell Miracast Wireless Monitors Unveiled At CES 2016
http://www.geeky-gadgets.com/dell-miracast-wireless-monitors-unveiled-at-ces-2016-07-01-2016/

[3]

AnyCast M2 Plus Mini Wi-Fi Display TV Dongle Receiver 1080P - $19
http://goo.gl/uxaf65
--
During times of Universal Deceit, telling the truth becomes a revolutionary act
- George Orwell