Ironically, ICEBREAKER was a title that author John Gardner had to fight for. In a 1985 interview with Bondage Magazine (Number 14) he spoke about what was then his fifth Bond novel (Nobody Lives Forever), saying:
"We haven't a title yet...I got an odd title that they said, 'Well, maybe...but maybe we can do better than that.' But they said that with Icebreaker. They went though a hundred and one different titles, and then went back to Icebreaker."
(BTW, Gardner's "odd title" choice for his fifth book was You Only Die Once.)
I expect Eon is currently going thorough their own one hundred and one title ideas. Let's hope when they settle it's a title that's as solid as ICEBREAKER.