I guess the problem will be that 1080p was driven forward by blu-ray.
There is no new standard coming out with 4k to push people into upgrading
lol, tv pushed 1080, 100mil's of people had 1080p tv's before they had bluray players. I only got a bluray player last year and we've had a high def tv for, god knows how long or how many.
The simple and biggest push for 1080p tv's was.... they were available. Who was buying a old cathode ray tv when LCD's were available? No one, almost everyone I can name that I know had a 1080p screen before they had a bluray. Most because bluray players were expensive to start with and disc's were stupidly priced.
There was LOADS of hd content on tv, okay states got it straight away and Sky HD had what, 3-4 channels of mostly repeated content for ages, then they had 7-8 channels. Now its loads more but the key channels were pretty early, Sky sports HD was huge for HD package uptake in the UK, pretty much the main reason people got it for ages.
4k tv's will go the same way, when they are available and considered top end, people who want the best buy the best. Same way guys who only play a few games, most get an i5, some still get a hex core £700 chip that they don't even use.
In terms of bluray, its a medium and expandable, 4 layer jump will be easy to make, 8 layer is possible but would cost a stupid amount, its designed as a standard to eventually go 8 layer though.
Personally I'd take content in X264/mkv'd format at 40gb a film and 4k(assuming I had a screen) than a 40gb 1080p normal bluray disc.
Either way its not particularly there, they won't be standard £400 4k tv's for 4-5 years, and even then there might not be blurays.... people will still buy the screens.... because that is what people do.
As said though, these aren't aimed at gamers yet, I wouldn't take a 24fps screen for gaming if you had a gun to my head, literally, really low refresh rates cause me migraines(or I should say overly stuttery or blurry images ).
For my comp I don't care about 4k, I just want something above 1080p at something below 27" with 120hz and preferably not a TN panel(though newer TN's make older ones look like dog turd and are far more livable with these days).