I hope someone will reply with a more authoritative response, but here's my tentative comment...
I assume you do not have to report your Final Salary Scheme or your UK State Pension, because these are not financial accounts that you own a piece of or have value in. They will pay you a defined benefit when you reach a certain age. I have one of each of these too, and have never reported them in the FBAR so I hope I'm right.
However, I suppose you could start reporting them, with name and address of the funds and a zero in the box for value. And if including them brings your total number of accounts to 25 or more, then so much the better. (See Part 1 Question 14.)