Tiger-dragon people?! Like Kintaro from Mortal Kombat 2?!?!?
I... no. Well, it's possible but very unlikely.
Ka Po'Tun (Tiger-Dragon people) would most likely be khajiit like, but with more prominent tiger features and be of shapes forming into near dragons.
However I cannot be certain on this- for Bethesda keeps Akavir in deep slumber and few actual facts come from the single drops of information they give us.
Take this little clarification with a pinch of salt, I may yet be corrected.