Before I start, can I just say that I have absolutely no legal knowledge apart from the bits I picked up during my own divorce proceedings.
As has previously been said, all assets will be added up and divided equally. However, will his monthly income from the private pensions not be classed as exactly that, his future income, and, if so are you entitled to any of it? For example, when I got divorced, I got half my husband's pension pot but, once we were divorced, I wasn't entitled to any of his future income. I do know that the courts prefer a clean break and try to get away from spousal maintenance whenever possible.
Presumably, if your husband is retired, you have had the benefit of the lump sum and monthly payments. Obviously you will get half of anything left of the lump sum but, once you are no longer married, surely you won't be entitled to money from his monthly pension as that will be his income.
Be careful you're not shooting yourself in the foot. It could be your husband is offering you something your not actually entitled to.