Don't Expect New Emojis Right Away
It would be great to see new emoji characters in the first version of iOS 13, but we don't expect that to happen.
Unicode 12 is confirmed and we expect many of these characters to land for iPhone, iPad, iPod touch, Mac, and Apple Watch inside an iOS software update later this year.
Don't expect Apple to make any of the new emojis available in the iOS 13 beta, but we expect Apple to put them into beta before they're released to the public. Probably in an iOS 13.1 beta this fall.
Look for the official version of iOS 13.1 to arrive before the end of the year.