The French national team isn't very likely unless you mean after 2026 as Deschamps signed a contract until then. On the one hand I think Zidane would be the perfect fit for the national team, but on the other hand he is still so young and would still make a great club coach for many years to come.
to be honest I would prefer if Zidane became coach of PSG even though it's still TBH.
Zidane has had very good experience in the past when he was a coach at Real Madrid. Zidane always quickly learns every player character he holds and can provide a strong strategy in every match and Zidane is also able to bring his players to win 3x champions league titles in the past.
I think if Zidane really becomes coach of PSG for sure PSG has a very good opportunity to be better to get the best position in every league.