If you are intested in HDSLR video you likely know Philip Bloom and if not you should. Follow his work and articles you see what he can do with Full HD today. Clearly 4K is the furture but till it gets mainstream we may have to wait likely some 5 years or more. 4-5K with the Red is reality today for major movie productions. For the rest of us exploring Full HD and great film content keeps us busy for now.