You will see more characters for accessibility, such as guides, wheelchairs and prostheses. Also the known "hold hands" emote now contains many more combinations of skin colors and gender. You can also find India-focused emotions like a Hindu temple, a Diya lamp and a sari. On the stupid side you can expect animals such as sloths, otters and flamingos, not to mention underpants and yo-yos.
Apple just wants to say that the new emoji comes as part of a software update this fall, but it is basically shorthand for the releases of iOS 1