According to a tweet by Soap Opera Digest, the Outstanding Younger Actor and Actress categories have been added back into the main Daytime Emmy ceremony on June 23.
SOD later updated their site with this full update:
The Outstanding Younger Actor/Actress category, which was slated to be presented during the Creative Arts Emmys on June 17, is back in the June 23 banquet, Digest can confirm. Sources report that a host of complaints were lodged once the categories were omitted from the list on the 23rd and that some nominees were so upset that they considered not attending at all. Fortunately, all's well that ends well.
Good to hear NATAS came to their senses!