The middle class will cease to exist as the gap between the rich and poor continues to widen.
Statistics will show that crime continues to fall, even though in reality and in the way that matters it actually rises.
Not as many people will go to university - and the rich/poor gap for education will continue to widen.
Housing outside of London/SE will drop in price slightly, as baby boomers die off. In SE property will continue to increase.
The average age that people live to will go down, as people aren't as healthy as previous generations.
The majority of people will never retire - public pensions either won't be around at all, will be too little to live on, or retirement age will increase massively. And value of people's pension funds will continue to decrease. I'm 30 and I don't expect to ever retire properly.
The NHS will become a second-best, like-it-or-lump-it health system, whereby if you want proper treatment you have to pay for it privately. Eventually it'll disappear altogether.