I've noticed that there seems to be 2 senche or so missing. I don't know if this is intentional, or if ZOS has plans to release them down the road. But, I figured that I'd bring it up to you guys as food for thought.
The first mount is the standard Senche-Tiger. Now mind you, I don't mean the Striped-Senche. As the coat on that senche is different, and has a more gold-like color to it. Goldish bronze rather. Plus it was limited to only people who had never dropped their sub for a certain amount of time, when the game wasn't F2P. It was a loyalty reward in other words. The senche I'm discussing in regards to the Senche-Tiger are the senche that have an orange coat. Much like an actual tiger. These can be seen wandering or laying about Greenshade and other AD regions. And would make absolutely amazing mounts. I'd actually pay 3k or more crowns for it, if released.
The second mount I'm talking about, is the white tiger mount that was briefly hinted at by a ZOS developer in an ESO Live stream a few months back. As is we have the vanity pet version of this called the Moonlight Senche-Tiger aka "Secunda". And it's odd due to the fact that we have never gotten an actual mount of it. And yet we have the baby. It's pretty weird, considering the mount is usually released prior to the cub. But in this case, the mount was never revealed nor available for purchase.
The third and final missing senche mount is the Striped-Senche Panther. I wondered if the Black Senche-Panther was supposed to be its mount version, but later on realized that that couldn't have been the case. This is due the Black Senche-Panther most recently having its cub version released as the Black Senche-Panther Kitten as a crown crate reward. As well as its standard mount form. So where is the Striped-Senche Panther's Mount? Strange isn't it?
It's pretty weird that ZOS has done things like this, especially when senche have been huge cash opportunities for ZOS. Tons upon tons of people flock to the crown store whenever there's a new senche being released, no matter how expensive. Case and point the Dro-m'athra Senche which cost 4,000 crowns. And people still bought it up like hot cakes, due to it being absolutely incredible. And people will most likely buy up the Saber Tooth Tiger mount and cub upon its release in a few days. So why those 3 are missing a papa/momma, nobody but ZOS knows.