No. Beware the tiger-men.

"The Ka Po'Tun are a race of tiger people that live on Akavir. Their name means "Tiger-Dragon's Empire". When the Tsaesci supposedly tried to eat all the dragons in their Empire, the dragons fled to Po' Tun, as the empire of tiger people was called then. A great war raged across the land, leaving all the black dragons and all but a few red dragons dead. The remaining red dragons retreated to Tamriel, where they were supposedly given refuge in Cyrodiil. Ever since, the tiger people that remained have tried to somehow become dragons. Tosh Raka is the first one to succeed. Apparently he is the largest Dragon on Nirn, with orange and black coloring, and has built Ka Po' Tun into the largest empire of Akavir. He desires the destruction of Tsaesci, after which he intends to invade Tamriel. The first born-son of an Emperor is known as a Half-Breed, this is a title and rank."

I think the Ka Po' Tun may possibly figure into TES V. I think an invasion from them is likely, and their affection for dragons is a major indicator; hell, they've even attempted to become dragons. And one has succeeded. They have returned.
Think about this, which a guy I know said: "An invasion from the Ka' Po Tun would indicate that they have already wiped out the Tsaesci. Tosh Raka said they would only invade Tamriel if they had first defeated the Tsaesci. Considering the Tang Mo allied themselves with the Ka' Po Tun, I'd say its possible that the Tsaesci don't stand a chance against the Tiger-Dragon Empire. What if the Tsaesci were absorbed into the Tiger-Dragon Empire? And the Kamal? Imagine an entire Akaviri invasion."

Beware the tiger-men.

No. Just need to make the current races play more distinctly from each other (other than cosmetic and skill/attribute bonuses & a few lame powers).