If my PS Plus account expires, do my free packs expire as well?
Solution 1:
If you go by this recent news post: https://www.express.co.uk/entertainment/gaming/1180787/PS-Plus-October-Free-Games-Great-PS4-PlayStation-September-21
World of Tanks fans can grab the exclusive PS+ Silver Drop right now on the PlayStation Store.
And unlike the free PS Plus games offered each month, all items included remain part of your account, even if you end your subscription in the future.
Tera would be the same case here. I don't think Sony would be able to track and disable all ps plus packs offered by different games.