@mrhunt,
You know....
I don't think the odds are in favor of her having dinner with him "a few months from now"
You know how you leave a job, and there's always people who say "We'll still be friends, we'll stay in touch, I'll call you, etc. etc."
A few months go by, you don't even think of those people much, let alone do anything with them. Oh sure, once in a while. I'm good friends 20 years after I worked with this woman for a few months. That's the exception, not the rule. In fact, although we are quite close emotionally, we actually only talk about 3 times a year.
Anyway, I think them agreeing to have dinner in a few months is just something that one says.
Not to encourage you, but not to discourage you either.