There were only seven episodes in the last pack of Forces of Destiny shorts, as opposed to the usual 8, and Lucasfilm publicist Tracy Cannobbio says the eighth one will debut in the May 25 broadcast on the Disney Channel.
The timing makes it seem likely that it could be related to Solo – a Qi’ra, L3-37 or Val short, perhaps? But it’s only a day after the film debuts, so much of the potential audience might not even know those characters. We also know, thanks to the toys, that there’s a Rey and Kylo short in the pipeline as well. Rey only appeared in one of last week’s shorts.
Hopefully we’ll hear more (beyond the time) in the days leading up to the broadcast.