Yeah, I think the past is the key for the future of 4K, the industry knows just what to do in order to get this moving.
Cheaper TV-sets, well prices 4K blu-ray players, and getting cheap 4K blu-ray discs out fast.
We are NOT going to see transmissions of 4K content anytime soon, there might be some, but look how long it took for 720p 1080p transmissions to catch up the everyone with HDTV. So the key here is streaming and getting out cheap 4K blu-ray discs for people to buy.
Only time will tell.