LEGO has officially announced that we’ll be getting some LEGO Unikitty! sets as well as a collectible series this August based on the Cartoon Network animated series.
The sets are numbered from 41451-41455 and the collectible series is 41775. Note that it doesn’t say “collectible minifigure series” so perhaps they are the rumored Mixel type builds for each of the characters in the show.
Nothing more is known at this time as they were not shown off at the 2018 New York Toy Fair. It is possible that we’ll most likely see them at San Diego Comic Con in a few months.