He could still end up having his kids (adoption, surrogate, fling with a chick before coming out). They'd obviously be younger and probably wouldn't have their powers, but it could happen.
As an aside, I wish more superheroes had kids. So lame that they, with a few exceptions, all have to be "single and ready to mingle" all the time. I've been reading Brubaker's 04 run on Captain America, and I thought it was cool when Sharon was pregnant. I was bummed when the she lost the kid cause I really liked the idea of Cap being a dad.