But until when?
Next time? No, too boring for a man of few words who knows how to use those few so well.
The cows come home? No, too silly.
The twelfth of never? Ah, poetic, yes, but I'm probably wishful thinking.
We meet again? Still a bit mundane, yet invokes the possibility of a tomorrow together, maybe even a world of tomorrows.
I like that.
But not as much as I love the simply spoken "Until..." because, well, I've always hated "Goodbye."