The real killer for defined benefit pension schemes is :
a) the unfortunate fact we are all (on average !) living longer, hence an annuity when bought, has to be purchased in the context that it may have to be paid for 30 odd years. Not so long ago we were all falling off our perch much earlier
b) very poor investment returns (albeit the last 6 months have been pretty spectacular - but will that last ?)
c) The Labout government (and for that matter any governments) refusal to set a stable platform for developing retirement income for the majority of the population
d) Extremely low interest rates forcing up the cost of buying a £ of pension
e) The short sighted and self serving attitude of Trustees and Employers in allowing contribution holidays in the past.
f) a host of other reasons inluding tax implications
These issues are solvable but it needs a willingness on all (including the Government of the day, Employers, Unions and individuals to work together to arrive at a solution.
In light of that I think we can assume defined benefit schemes and the security they provide are doomed - pity.
Still, I suppose change is the only constant !