In Adnroid 7.1 a couple new Emoji were added, but those are not nougat exclusive anymore, since whatsapp added them to the new Beta.
In the new beta version of the popular WhatsApp Messenger the latest unicode Emoji have been added, so now you can say even more things without typing anything. The new Emoji are more diverse than ever, including a bunch of new job emoji for bith men and women of different origins with quite a few skin colors added.
And if that was not good enough for you, note that there are other new emojis like a facepalm, some bacon and whisky. You can easily become part of the new Beta programm by signing up here .