Apple creates an integrated snapchat. Removes snapchat from the apple store. It's not like they havent done that to other popular apps that they have the ability to replicate (google maps)
My point still stands that Apple initially removed it when they released Apple Maps. Since messaging is part of Apple's core experience, it's very likely that they'll eventually update their iMessage app.
Snapchat is not unique. In fact, there are far bigger and more popular messaging apps around the world. They just dont get the attention that SnapChat does because it happens to be in California and in the US.
http://thenextweb.com/apps/2013/10/18/best-mobile-messaging-...