What an interesting question. At this stage in our marriage, just over 50 years, All I want is for my spouse to be happy and enjoy our life together. So, just as it was when I came out to my wife, I'd be a bit surprised but would only want her/him to be happy. I would not set any conditions, again deferring to what my spouse needed to live happily.
Of course, it's an easier answer now at this stage of our marriage and after working through my own transition. I now know more of the questions, concerns and responses that transition evokes. I watched as my wife went through something similar to the stages of grief that comes after losing someone and I worked hard not to push her through the stages.
I can only hope that I would be as loving, caring and ultimately as accepting as she has been.
Damn, if nothing else, thinking through this has made me realize, once again, how very fortunate I am to have the love of this amazing person.