Bigbouster,
I don't necessarily agree with your comment. If a DB scheme operates on an "integrated" basis then it promises a benefit which takes into account the expected State Pension. The fact that the State Pension is now only payable from age 66 whereas the DB scheme has a retirement age of say 65, does not automatically mean that the scheme has to pay the State Pension for one year. It all depends on the rules of each scheme.
I don't understand why you state that the scheme would have to fund the State Pension for the full ret ire net period. At most it will be just to bridge the difference in the two retirement ages.