That's an awful big leap to make based on there being twelve blurry background figures.
So: probably not, no, not quite yet, hell no, and apparently sort of.
The Others and the White Walkers are the same thing; the show just changed the name because Lost. They are magic ice people who freeze everything around them, and have the power to raise the dead as frozen zombies (aka wights).
At the end of the episode, the Extra Magical Dracula King of the White Walkers turned the baby into a baby white walker. I don't see why people are assuming he's a different species just because he looked a bit different from the other white walkers we've see so far.
They are presumably gendered but incapable of sexual reproduction, and rely on turning infants to slowly grow their numbers.
