Can the Deluxe voucher be saved for a later season?
Yes. The Premium Ace Pass Plus voucher is not tied to Season 1 and can be held for another season.
Confirmed explanation
That flexibility matters for players who will not play much at launch or prefer to inspect later rewards. Redeeming it for Season 1 provides the relevant premium track and immediate Online Mode Morgan–PIXY unlock.
What is not confirmed yet
No expiration date or account-transfer policy has been published.