Just lately, the media-streaming use case has been brought to the WiFi Direct personal-area network as a competitor to the Bluetooth A2DP / AVRCP media-streaming applications.
There is an important fact that any WiFi-capable DLNA device could be a client device in this network setup as long as the host computer or smartphone is WiFi-Direct capable and running DLNA-compliant media management software. This could mean that your Intel WiDi laptop could be set to play video on that Samsung Smart TV or music on the Sony CMT-MX750Ni without needing to use an established WiFi router or access point.
What I see about WiFi Direct is that it is effectively being run as an alternative to Bluetooth for the personal-area network or standards-based peripheral link. But I am not sure whether it will succeed due to heavy emphasis by industry on the use of Bluetooth for this application and little consumer promotion of WiFi Direct capabilities.