The latest TV technology buzzword is "4K." This magical alphanumeric represents a quadrupling of the now-standard 1080p resolution found on Blu-ray and most HDTVs.
Have no doubt, manufacturers are going to start pushing 4K (some already are).
The thing is, though, you don't need 4K, because in the home, 4K is stupid.
Check out Ty Pendlebury's 4K primer for more details about what 4K actually is, because I'm going to spend the bulk of this article describing why you don't need it.