Hello BamBam,
This is a difficult question. Actually I'm not sure I understand what you are asking.

If your husband remains in denial or refuses to even have an evaluation, you do not have much hope for much improvement in your situation. It would be highly unusual for him to stop having manic episodes in the future if he remains unmedicated. He will continue having more frequent episodes and the symptoms may become worse and worse as he ages. That being the case, what do you do.

I guess you have to figure out if you're willing to continue living with an unmedicated bipolar.
My answer to most things pertaining to BP is to learn as much as you can about the disorder, the available treatments, and about the medications that are used in treatment. When he comes down from the mania, you will have a better chance of trying to communicate with him. This would be the best opportunity you will have to try to get him into treatment, or at least evaluated. There is no point trying to convince him of anything when he is manic. It seems to be the nature of the beast to be oppositional during this time. You will make no headway and may even make things worse.
I just realized how tired I am. I'm going to stop writing for now. Let me know more specifically what you want to know, and I will try again! In the meantime others may post who have a better understanding of what it is you are asking.
xxxTsohl