matter for the future; something a long way off; not happening anytime soon
Used to describe a topic, plan, or event that is far in the future and not an immediate concern. Often implies that it is too early to discuss or worry about it.
That's still a matter for the future, so you don't need to think about it now.
I thought marriage was still a long way off.
Compound of 先 (saki, 'ahead; future') + の (no, possessive particle) + 話 (hanashi, 'story; topic'). Literally 'a story of the future'.