Yes. For most expats it's life expectancy at, say, 60 or 65 that is relevant.
I hope - at currently 74 & 95% healthy - to live happily in to my 90s and, barring accidents & violence, I see no obvious reason why not. But, as my best friend (who drowned in Oz at 62) used to say: Noone knows when they're going to die.