Possible Pet Storage in the Future?

With all the excitement about the new non-combat pet Tyrael, a potentially important issue has been pushed to the sidelines - Where Do We Keep All These Bloomin Pets?!

If, like me, you collect non-combat pets and other novelty items, such as
last year's BlizzCon attendees' Murloc Costume, then you'll be starting to feel the strain as more and more of these items become available. Of course, player housing would be a perfect solution (hint hint), but we know that isn't going to happen any time soon unless Blizzard are planning a huge surprise for us.

However, after a comment from a player on the official forums, saying that he is quitting the collection of non-combat pets, Nethaera advises against stopping right now. Could Blizzard be planning some sort of device similar to the keyring?:

Blizzard wrote:

"To be quite fair, I believe we've been suggesting some sort of vanity
pet storage solution for years now. Drysc made some vague references to
possible solutions coming up quite some time ago."

We like our vague references. It doesn't mean it still can't be
discussed or more suggestions given. Though I suggest that retiring now
would be bad timing perhaps.