The bags that Vuitton carries aren't really seasonal, they say that it is seasonal to let you know that they are not part of the permanant collection.. the Vuitton stores and Eluxury will continue selling them until they are sold out.. that is unless there is a recall after the item/line is discontinued. Eluxury does not send back the items, if you see on the website there is still Mono Mat item being offered, even though that was recalled in August of this year. As for the items recalled from the Vuitton stores, I believe they are sent back to the Vuitton warehouse where they are first offered to the Vuitton staff at a lower price, and then if those items are not sold, they are destroyed. If you call 866-Vuitton, they will tell you that there are no more Mono Mat items available.
If an item is discontinued, you can still find the items (if they aren't sold by then) by calling the 866-Vuitton stores, or asking an SA to help you.
I'm not sure if this is the question you are asking, but HTH!