Of course you will, and it will not impact you in any way.
What will happen is that the scheme will cease IN THE FUTURE to be driven by the salary of the retiree in his/her final year of employment. I am very confident that pension benefits will be paid to current employers at the 'Final Salary Rate' up the point when the current scheme is turned off - then some different (lower benefit) formula will start up from now until the individual retires.
But for you, all of this is irrelevant - your pension is 'locked' to the salary you were on at the date you resigned/left Barclays. So whatever happens in the future is irrelevant.
The media are utterly useless at explaining this properly and Unite and other Unions are totally disengenous in their head-in-the-sand attitude that FUTURE pension benefits are sacrocant. HISTORIC benefits can reasonably be expected to be held as sacrocant - but by the same token that one's future employment terms & conditions are not guaranteed, the same has to be true when it comes to pensions.
This country is heading for an almighty financial problem if Government doesn't tell the Unions that their position over final salary schemes is untenable and unaffordable.