In quite a few MMOs there are 7-day and 30-day temporary mounts and then permanent versions of those mounts. The temporary mounts allow the developer to offer a higher chance at a rare mount that may only last a few days. For example, you may be able to acquire a 7-day Radiant APEX mount for less gems or have a higher chance of it being in your crate.
I think this along with rare temporary pets would be a fun and exciting addition. It also would encourage people to get more Crown Crates and perhaps improve Crown Crate sales.

VaranisArano wrote: »
Why would I want ZOS to design temporary mounts that take the exact same effort as permanent mounts and then only get to keep them for a little while?
That makes no sense from a consumer standpoint.
The only reason we have limited time only stuff is to create artitificial scarcity. We don't need temporary "hey you won this prize, but only for a month" mounts as well.
Its just, I...I don't get the appeal. At all.
shaggybodomb14_ESO wrote: »There is only 1 way this idea would be an ok one: If it was an ADDITION to what is already found in the crates. You get what, 4, sometimes 5, items? I don't remember the exact number. But temporary mounts/pets could be a 6th that only show up at times. It would give the player a chance to check out a mount, and maybe purchase after the temporary time is over.
But if it replaces anything I have a chance to get, I would rage. And I never rage.
A chance-to-get is bad enough, but a chance-to-rent? That's hilarious. But how exactly would this be fun and exciting?I think this along with rare temporary pets would be a fun and exciting addition. It also would encourage people to get more Crown Crates and perhaps improve Crown Crate sales.